Skip Navigation Bar
 

Announcements to NLM Data Licensees: Year 2012

(11/07/12) Renew License for 2013 (for current MEDLINE®/PubMed®, Catfile, CatfilePlus, Serfile, CCRIS, ChemIDplus Subset, DIRLINE®, GENE-TOX, HSDB® Subset, and TOXLINE® Subset Licensees)
(10/04/12) Correction to August 10, 2012 Announcement; Two MEDLINE/PubMed Data Changes; MEDLINE/PubMed Sample Records using 2013 DTD; New Labels for MEDLINE Structured Abstracts; and Annual Renewal Reminder
(08/10/12) 2013 DTD and XML Changes; Forthcoming 2013 Baseline and Update Files; Schedule Changes; Continuing to Lease NLM Data in 2013 [Corrected 10/02/12]
(05/03/12) MEDLINE/PubMed Update File May 3, 2012
(02/17/12) MEDLINE/PubMed Data Changes
(01/09/12) Catfile, CatfilePlus, and Serfile MARC 2012 Baseline Files Now Available
(12/23/11) MeSH Descriptor Corrected
(12/14/11) MEDLINE/PubMed Baseline Data; CatfilePlus and Serfile XML Baseline Files

2011 Announcements


Renew License for 2013 (for current MEDLINE®/PubMed®, Catfile, CatfilePlus, Serfile, CCRIS, ChemIDplus Subset, DIRLINE®, GENE-TOX, HSDB® Subset, and TOXLINE® Subset Licensees)

November 7, 2012

Licensees who entered into the current License Agreement for NLM Data on or before August 31, 2012 need to renew their license no later than December 5, 2012 to be retained as licensees and to have access to the 2013 data files. An e-mail announcing access to the renewal instructions was sent to those who need to renew. If you entered into the current License Agreement for NLM Data on September 1, 2012 or later you do not need to renew for 2013. In this case, you were not sent the e-mail and can ignore the instructions below; your license remains in effect, and access to the 2013 data files will continue without interruption. An online system is used to renew or to cancel your existing license. The system will be in operation through 5:00pm EST Wednesday December 5, 2012. If you do not renew by then you will need to submit a new license request to again license the NLM data.

RENEWAL INSTRUCTIONS FOR LICENSEES
  1. Go to the renewal system Web page (http://wwwcf.nlm.nih.gov/nlm_licensee/renewal/index.cfm) no later than 5:00pm EST December 5.
  2. Sign into the renewal system. Enter your license code and the licensee’s first and last names exactly as shown in the individual e-mail sent to each licensee on November 7, 2012. Sign in will not work if the secondary representative’s name is entered.
  3. Follow the prompts to renew or cancel your license.

If you elect to renew, you will be asked to re-accept the terms of the license agreement and to review your license profile before electing to renew with or without changes to your profile information. Changes to e-mail address, selecting additional data to lease, or changing an IP address used to get to the data files will take effect immediately. An e-mail confirmation of the renewal will be sent to the license representatives.

If you elect to cancel your license, you will no longer have access to licensed data files on December 11, 2012 and your license will be cancelled on that date. An e-mail confirmation of the cancellation will be sent to the license representatives. See Section 13 E of the License (http://www.nlm.nih.gov/databases/license/license.pdf) for required actions upon termination of the license. Section 6 is also pertinent if you have redistributed data received under this license, or data derived from the NLM-supplied data.

On December 11, 2012 NLM will cancel licenses of those who have not renewed or cancelled on their own by December 5, 2012. There will be no grace period after December 5 as the renewal system will no longer be operational. Licensees who intended to renew but did not do so on time will need to initiate a new license request (http://www.nlm.nih.gov/databases/license/license.html).


Correction to August 10, 2012 Announcement; Two MEDLINE/PubMed Data Changes; MEDLINE/PubMed Sample Records using 2013 DTD; New Labels for MEDLINE Structured Abstracts; and Annual Renewal Reminder

October 4, 2012

  1. CORRECTION TO AUGUST 10, 2012 ANNOUNCEMENT
    We removed an inaccurate sentence in our announcement dated August 10, 2012 at http://www.nlm.nih.gov/bsd/licensee/announce/2012.html#d08_10.

  2. TWO MEDLINE/PUBMED DATA CHANGES
    The Category Z subject term Oceans and Seas is reclassified as a Descriptor Class 1 in the 2013 MeSH vocabulary. As such Oceans and Seas will no longer carry the Type attribute Geographic with the DescriptorName element.

    There will be a significant increase in the number of records in the 2013 baseline distribution with Digital Object Identifier (DOI) data in the ELocationID element. We are programmatically populating the ELocationID element with DOI data currently residing in the PubMed-only ArticleId element. For new records, we will automatically copy DOIs from the ArticleId element to the ELocationID element.

  3. MEDLINE/PUBMED SAMPLE RECORDS USING 2013 DTD
    A small file containing 156 representative records processed using the 2013 NLMMedlineCitationSet DTD is available at http://www.nlm.nih.gov/databases/dtd/medsamp2013.xml. A link to the 2013 DTD and a summary of XML changes for 2013 are in item 1 of the August 10, 2012 announcement at http://www.nlm.nih.gov/bsd/licensee/announce/2012.html#d08_10.

  4. NEW LABELS FOR MEDLINE STRUCTURED ABSTRACTS
    We updated the list of structured abstract labels. Please see the NLM Technical Bulletin article titled “Structured Abstracts in MEDLINE: Newly Identified and Mapped Labels Available” at http://www.nlm.nih.gov/pubs/techbull/so12/so12_structured_abstracts.html for details.

  5. ANNUAL RENEWAL REMINDER
    If you entered into the current License Agreement for NLM Data on or before August 31, 2012 you will receive another e-mail in early November announcing availability of the renewal period for continuation as an NLM data licensee for 2013 data. Please refer to item 5 of the August 10, 2012 announcement at http://www.nlm.nih.gov/bsd/licensee/announce/2012.html#2013LEASE. You do not have to renew for 2013 if you became a licensee September 1, 2012 or later and NLM will not send you the renewal e-mail.


2013 DTD and XML Changes; Forthcoming 2013 Baseline and Update Files; Schedule Changes; Continuing to Lease NLM Data in 2013

August 10, 2012

Topics covered:

  1. DTD and XML Changes for the NLM 2013 Production Year
  2. MEDLINE/PubMed Data Changes for the NLM 2013 Production Year
  3. Forthcoming 2013 Baseline and Update Files
  4. Schedule Changes for Daily MEDLINE/PubMed Update Distributions in November 2012
  5. Continuing to Lease NLM Data in 2013
  6. Information Page for Licensees
  7. License Code Reminder

  1. DTD AND XML CHANGES FOR THE NLM 2013 PRODUCTION YEAR

    There are no changes expected for 2013 to the DTDs used for CCRIS, ChemID Subset, DIRLINE®, Gene-Tox, HSDB®, and TOXLINE® Subset data. There are changes to the DTDs used for MEDLINE/PubMed, CatfilePlus in XML, and Serfile in XML for the 2013 production year. The January 1, 2012 versions of the NLMMedlineCitationSet and NLMCatalogRecordSet DTDs currently in effect will be replaced by DTDs dated January 1, 2013. The new DTDs will be used for creating the 2013 versions of the baseline MEDLINE/PubMed, CatfilePlus in XML, and Serfile in XML data and their subsequent updates during the 2013 production year. The forthcoming 2013 DTDs are available from links on http://www.nlm.nih.gov/databases/dtd/. The MEDLINE XML Element Descriptions document and the CatfilePlus and Serfile in XML Format Element Descriptions document will be edited to reflect these changes in the future. Licensees will be advised when sample files of XML records using the 2013 DTDs become available. NLM will announce changes in PubMed search functionality and display based on the 2013 DTD in the NLM Technical Bulletin later this fall after those decisions are final.

    1. Changes to NLMMedlineCitationSet DTD AND MEDLINE/PubMed XML
      The DTD changes for the 2013 production year are itemized in the Revision Notes section near the top of the DTD. The following describes the substantive changes to NLMMedlineCitationSet DTD and MEDLINE/PubMed XML:

      1. Indicating abstracts not in MEDLINE/PubMed but available from publishers [Corrected 10/02/12]
        English-language abstracts are taken directly from the published article and included in the <Abstract> and <AbstractText> elements. If the article does not have a published abstract, the National Library of Medicine does not create one, thus the record lacks the <Abstract> and <AbstractText> elements. However, publishers create English-language abstracts that are not published with the article, as well as, non-English-language abstracts that may or may not be published with the article.

        These other abstracts will be indicated in the <OtherAbstract> element. A new "Language" attribute is added to the <OtherAbstract> element. (Sentence removed.) Although we will not carry the text of OtherAbstract Type="Publisher", the <AbstractText> element will not be empty. The <AbstractText> element will carry the standard phrase: "Abstract available from the publisher."

        DTD:
        <!ELEMENT OtherAbstract (AbstractText+,CopyrightInformation?)>
        <!ATTLIST	OtherAbstract Type (AAMC | AIDS | KIE | PIP | NASA | Publisher) #REQUIRED
        		Language (#PCDATA ) "eng">
        
        Sample XML:
        <OtherAbstract Type="Publisher" Language="fre"> <AbstractText> Abstract available from the publisher.</AbstractText>
        </OtherAbstract>
        

      2. Rename NameID to Identifier
        The NameID element was created in 2010 and modified in 2011 but has not yet been used. NameID is renamed to Identifier. Identifier is an optional, possibly multiply-occurring element permissible within the Author (personal and collective) and Investigator elements. It is intended as a unique identifier associated with the name. The value in the Identifier attribute Source designates the organizational authority that established the unique identifier. Beginning with the 2013 baseline, MEDLINE/PubMed citations may include Identifier element and its attribute Source.

        DTD:
        <!ELEMENT     Author (((LastName, ForeName?, Initials?, Suffix?) | CollectiveName),Identifier*)>
        <!ATTLIST     Author ValidYN (Y | N) "Y">
        
        <!ELEMENT     Investigator (LastName,ForeName?, Initials?,Suffix?,Identifier*,Affiliation?)>
        <!ATTLIST     Investigator ValidYN (Y | N) "Y">
        
        <!ELEMENT     Identifier (#PCDATA)>
        <!ATTLIST     Identifier 
                              Source CDATA #REQUIRED >
        
        Sample XML:
        <Author ValidYN="Y">
        <LastName>Ostell</LastName>
        <ForeName>James</ForeName>
        <Initials>J</Initials>
        <Identifier Source=”ORCID”>55555555555555</Identifier>
        </Author>
        

    2. Changes to NLMCatalogRecordSet DTD and CatfilePlus and Serfile XML
      The DTD changes for the 2013 production year are itemized in the Revision Notes section near the top of the DTD. The following describes the substantive changes to NLMCatalogRecordSet DTD and CatfilePlus and Serfile XML. Most of the changes reflect changes to MARC that have been made in anticipation of the adoption of the new cataloging code, RDA, in early 2013.

      1. Revisions and additions to the PublicationInfo envelope
        Publication/imprint information will be recorded in a more granular fashion within a new MARC field 264. Existing records in the database cataloged under AACR2 will continue to have publication information recorded in the 260 field and records for continuing resources may have both 260 and 264 fields. The first indicator in the 260 field currently identifies the data as original, intermediary, or current information. It will serve the same function in the 264 field. Additionally, the 264 field has a second indicator to describe the function of the described data: publication, distribution, manufacture or production (the last one is used for unpublished material).

        In order to accommodate this change to the MARC Bibliographic Standard, we are making changes to the PublicationInfo envelope in the DTD affecting the subelements Imprint, Place, Publisher, and DateIssued; adding two new elements, ImprintFull and CopyrightDate; and adding a new FunctionType attribute to the Imprint element. Specifically,
        • Rename the Publisher element to Entity to more accurately reflect the data now described in this field, i.e., not all entities will be publishers.
        • Move Place (optional and repeatable), Entity (optional and repeatable), and DateIssued (optional and not repeatable) from their current position as children of PublicationInfo to children of Imprint.
        • Apply the ImprintType attribute (required) only to Imprint, removing it from Place, Publisher, and DateIssued.
        • Add a new FunctionType attribute (required) to Imprint to identify the “publication” function appropriate to each Imprint instance.
        • Add a new ImprintFull child element (required, not repeatable) to Imprint to capture all the subfields (concatenated) within the single 260 or 264 field described within that Imprint envelope (this is the current use of Imprint).
        • Add CopyrightDate (optional and not repeatable) as a child element of PublicationInfo.

        DTD: 
        <!ELEMENT PublicationInfo (Country?, PlaceCode?, Imprint*, ProjectedPublicationDate?, 			
                    CopyrightDate?, PublicationFirstYear?, PublicationEndYear?, Edition?, 					
                    DatesOfSerialPublication*, Frequency*)>
        <!ELEMENT CopyrightDate (#PCDATA)>
        <!ELEMENT Imprint (Place*, Entity*, DateIssued*, ImprintFull)>
        <!ATTLIST Imprint
                    ImprintType (Current | Original) #REQUIRED
                    FunctionType (UnpublishedProduction | Publication | Distribution | Manufacture) #REQUIRED>
        <!ELEMENT DateIssued (#PCDATA)>
        <!ELEMENT ImprintFull (#PCDATA)>
        <!ELEMENT Place (#PCDATA)>
        <!ELEMENT Entity (#PCDATA)>
        
        Sample XML:
        <PublicationInfo>
             <Imprint ImprintType="Original" FunctionType="Publication">
                  <Place>New York</Place>
        	  <Entity>Penguin</Entity>
        	  <DateIssued>1988-</DateIssued>
        	  <ImprintFull>New York : Penguin, 1988-</ImprintFull>
             </Imprint>
             <Imprint ImprintType="Current" FunctionType="Publication">
        	  <Place>Philadelphia</Place>
        	  <Entity>Field & Wood,</Entity>
        	  <ImprintFull>1990- Philadelphia : Field & Wood.</ImprintFull>
             </Imprint>
             <Imprint ImprintType="Original" FunctionType="Distribution">
        	  <Place>New York</Place>
        	  <Entity>Macmillan Pub. Co. </Entity>
        	  <ImprintFull>New York : Macmillan Pub. Co.</ImprintFull>
             </Imprint>
             <Imprint ImprintType="Current" FunctionType="Distribution">
                  <Place>New York</Place>
        	  <Entity>W.W. Norton, </Entity>
                  <ImprintFull>1990- New York : W.W. Norton.</ImprintFull>
             </Imprint>
             <Imprint ImprintType="Original" FunctionType="Manufacture">
        	  <Place>New York :</Place>
        	  <Entity>Wiley</Entity>
        	  <ImprintFull>New York : Wiley</ImprintFull>
             </Imprint>
             <CopyrightDate>©1988-</CopyrightDate>
        </PublicationInfo>
        
      2. Add a new ResourceCharacteristic element
        Four new fields (344-347) have been added to the MARC Bibliographic Standard to describe characteristics of specific resource formats: sound, projected moving images, video, and digital files. The data in these new fields will be captured in a new ResourceCharacteristics element with a Format attribute to identify the resource format. In addition, MARC field 256 (Computer File Characteristics) will now be captured in ResourceCharacteristics with a Format attribute value of DigitalFile (previously this MARC field data was included in the Form element under PhysicalDescription).

        DTD:
        <!ELEMENT NLMCatalogRecord (NlmUniqueID, DateCreated, DateRevised, DateAuthorized?, 
             DateCompleted?, DateRevisedMajor?, CollaborativePartnerDate*, TitleMain, 
             MedlineTA?, TitleOther*, AuthorList?, InvestigatorList?, ResourceInfo, ResourceCharacteristics*
             PublicationTypeList?, GenreList?, PublicationInfo, Language*, PhysicalDescription?, Abstract?, 	
             OtherAbstract*, ContentsNote*, IndexingSourceList?, GeneralNote*, LocalNote*, 	
             PersonalNameSubjectList?, MeshHeadingList?, OtherSubjectList*, SpaceFlightMission*, 	
             KeywordList*, BroadJournalHeadingList?, ChemicalList?, Classification*, GovDocClassNumber*, 	
             ELocationList?, Host*, LCCN*, ISBN*, ISSN*, ISSNLinking*, NCBIIssnAlias*, STRN*, Coden*, 	
             OtherID*, AcquisitionInfoList?, ReportNumber*)>
        <!ELEMENT ResourceCharacteristics (#PCDATA)>
        <!ATTLIST ResourceCharacteristics
             Format (Sound | Video | ProjectedMovingImage | DigitalFile) #REQUIRED>
        
        Sample XML: 
        <ResourceCharacteristics Format="Sound">digital ; optical ; stereo ; dolby<ResourceCharacteristics>
        
        <ResourceCharacteristics Format="DigitalFile">video file ; MPEG-4 ; 107,430 KB ; 640X480 ; 
        2.6Mbps</ResourceCharacteristics>
        
      3. Add new elements to PhysicalDescription envelope
        New subfields have been added to MARC field 340 including subfield j: Generation, subfield m: Book format (used only for rare books), and subfield o: Polarity. The data in these three subfields were formerly recorded in the MARC 300 or 5XX fields and concatenated in the DTD with other data as PhysicalDescription or GeneralNote content. In order to take advantage of the now more granular description of this data in MARC, we are adding new child elements to the PhysicalDescription envelope for each: Generation, BookFormat, and Polarity.

        DTD:
        <!ELEMENT PhysicalDescription (Form*, Extent*, Runtime?, Generation*, BookFormat*, Polarity*, ChapterPgn?)>
        <!ELEMENT BookFormat (#PCDATA)>
        <!ELEMENT Generation (#PCDATA)>
        <!ELEMENT Polarity (#PCDATA)>
        
        Sample XML:
        <PhysicalDescription>
        	<Extent>9 pieces ; 21 x 36 cm.</Extent>
        	<BookFormat>quarto</BookFormat>
        	<BookFormat>folio</BookFormat>
        </PhysicalDescription>
        
        <PhysicalDescription>
        	<Extent>1 film reel (200 ft.) </Extent>
        	<Generation>answer print safety</Generation>
        	<Polarity>negative</Polarity>
        </PhysicalDescription>
        
      4. Rename NameID to Identifier
        In order to stay in sync with other NLM DTDs, the NameID element in the Author envelope is being renamed Identifier.

        DTD:
        <!ELEMENT Author (((LastName, ForeName?, Initials?, Suffix?) | CollectiveName),
             Affiliation?, DatesAssociatedWithName?, Identifier*,
             NameQualifier?, OtherInformation?, 
             TitleAssociatedWithName?,Role*)>
        <!ELEMENT Identifier (#PCDATA)>
        <!ATTLIST Identifier 
           Source CDATA  #REQUIRED >
        
        Sample XML:
        <AuthorList CompleteYN="Y">
             Author>
        	<LastName>Osler</LastName>
        	<ForeName>William</ForeName>
                <Initials>W</Initials>
                <DatesAssociatedWithName>1849-1919</DatesAssociatedWithName>
                <Identifier Source="LCCN">n 79081429</Identifier>
                <OtherInformation>Sir,</OtherInformation>
             </Author>
        </AuthorList>
        
        <AuthorList CompleteYN="Y">
             <Author>
        	<CollectiveName>National Library of Medicine (U.S.)</CollectiveName>
        	<Identifier Source="VIAF">139054940</Identifier>
             </Author>
        </AuthorList>
        

  2. MEDLINE/PUBMED DATA CHANGES FOR THE NLM 2013 PRODUCTION YEAR
    1. The following is a description of a substantive change to the MeSH Supplementary Concept Record (SCR) and its impact on MEDLINE/PubMed data:
      Beginning with 2013 MeSH, the Unique Ingredient Identifiers (UNIIs) from the Food and Drug Administration (FDA) Substance Registration System are included in the MeSH Supplementary Concept Record (SCR). In MeSH, the UNIIs serve as a new system of unique identifiers supplementing existing Chemical Abstracts Service (CAS) registry numbers and Enzyme Commission (EC) numbers.

      Initially, the UNIIs are added to MeSH SCRs for chemicals with structures. The UNIIs are included in the Registry Number (RN) field. MeSH SCRs have only one RN field. If a UNII is added to a MeSH record with an existing CAS registry number or EC number in the RN field, the CAS registry number or EC number is moved to the Related Registry (RR) number field. MeSH SCRs can have multiple RR fields.

      MEDLINE/PubMed records do not carry RR fields from the MeSH SCRs. Therefore, when a CAS registry number is replaced by a UNII in the RN field of a MeSH SCR the CAS registry number is not included in the MEDLINE/PubMed record. The same is true for EC numbers. CAS registry numbers and EC numbers are available in the MeSH Data Files. As a reminder, the MeSH Files Available to Download are at http://www.nlm.nih.gov/mesh/filelist.html. The 2013 files will be posted as soon as they are available. More information on this policy change will be published soon in the NLM Technical Bulletin at http://www.nlm.nih.gov/pubs/techbull/tb.html.

    2. The following is a description of a substantive change in the MEDLINE citation policy for indicating an author reply to a published letter:
      Until now, the MEDLINE citation policy for indicating an author reply to a published letter, when published in the same journal issue, called for the insertion of "discussion" or "author reply" in the pagination field of the MEDLINE citation for the letter. A separate citation for the author reply was not created. If an author reply to a letter was published later, in a separate issue, the author reply was treated as a regular comment, and a separate citation was created.

      Beginning with 2013 publication dates, a separate citation is now created for an author reply no matter the issue in which it is published. More information on this policy change will be published soon in the NLM Technical Bulletin at http://www.nlm.nih.gov/pubs/techbull/tb.html.

  3. FORTHCOMING 2013 BASELINE AND UPDATE FILES
    1. MEDLINE/PubMed
      After NLM completes its annual database maintenance activities, we expect to release the 2013 baseline files for MEDLINE/PubMed maintained with 2013 MeSH vocabulary and other changes to renewing licensees in mid-December (on or about December 11 or 12 -- within 24 to 48 hours after the release of the 2013 PubMed system). Daily update files for the 2013 production year will also begin at this time. A complete baseline reload to replace all previously received 2012 production year data ensures you have the most current and accurate version of all records and is required per Appendix C of the License Agreement for NLM Data.

    2. CatfilePlus and Serfile in XML
      The CatfilePlus and Serfile XML baseline files, also maintained with 2013 MeSH vocabulary and other global changes are expected on or about November 27, 2012.

    3. CatfilePlus and Serfile in MARC format
      MARC-formatted CatfilePlus and Serfile baseline files maintained with 2013 MeSH vocabulary and other global changes resulting from annual maintenance are expected on or about January 7, 2013. The last monthly files which reflect the 2012 MeSH vocabulary will be dated November 1, 2012. Appropriate LocatorPlus records which are updated as part of annual maintenance will be distributed to licensees in the files dated December 1, 2012. All MeSH headings in records distributed in the December 1, 2012 files will conform to 2013 MeSH.

    4. Catfile in MARC format
      MARC-formatted Catfile baseline files maintained with 2013 MeSH vocabulary and other global changes resulting from annual maintenance are expected on or about January 7, 2013. The last weekly file which will reflect the 2012 MeSH vocabulary is the file dated November 15, 2012. Appropriate LocatorPlus records which are updated as part of annual maintenance will be distributed to Catfile licensees in files beginning November 29, 2012. All MeSH headings in records distributed as of November 29, 2012 will conform to 2013 MeSH.

    5. Other databases
      As routine, all XML files distributed to licensees during 2013 for CCRIS, ChemID Subset, DIRLINE®, Gene-Tox, HSDB®, and TOXLINE® Subset will be complete replacement files. New files, if available, will be on the server for licensees on or about the 28th of the month. Some of these databases are updated irregularly and/or infrequently.

  4. SCHEDULE CHANGES FOR DAILY MEDLINE/PUBMED UPDATE DISTRIBUTIONS IN NOVEMBER 2012
    As is the case each year, in mid-November NLM will suspend distribution of new and revised MEDLINE/PubMed records in MedlineCitation Status = MEDLINE, MedlineCitation Status = PubMed-not-Medline, and MedlineCitation Status = OLDMEDLINE as preparations are made for the new production year. The last records in these three statuses, as well as PMIDs of records to delete, for the current 2012 production year are expected to be available Wednesday, November 14. Not later than Tuesday, November 20, NLM will begin to export only records in In-process and In-Data-Review status until availability of the MEDLINE/PubMed 2013 baseline files in mid-December (on or about December 11 or 12). Daily update files containing new and maintained records in all statuses and PMIDs of deleted records will commence upon release of the baseline files to licensees.

  5. CONTINUING TO LEASE NLM DATA IN 2013
    Licensees must confirm continued interest in leasing NLM data during the 2013 production year by renewing their license agreement following instructions that will be provided in November. Only those who renew will have access to the 2013 data, and licenses of non-responders will be terminated (and accordingly, access to the 2013 data will be denied). Per Section 13E of the License Agreement for NLM Data , licensees who cancel their license or whose license is terminated by NLM are to:
    1. Discontinue use of any promotional or other materials that refer to such data within thirty (30) days, and
    2. Cease use of data or information/data derived from data licensed under this license in all applications no later than ninety (90) days. Following that, licensees must promptly destroy and erase all data obtained under this license as well as any data contained in any derivative applications under the licensee’s control. (This does not apply to Catfile, CatfilePlus, or Serfile data.)

  6. INFORMATION PAGE FOR LICENSEES
    Please visit the NLM information page for licensees http://www.nlm.nih.gov/bsd/licensee/. Licensees should follow the links on this page for data element descriptions, update charts, announcements to licensees, and other documentation/resources relating to NLM leased data.

  7. LICENSE CODE REMINDER
    A unique alpha-numeric code including the letters "NLM" is assigned to each license and appears at the top of license-related e-mails sent by NLM. Please keep a record of your license code and reference it when corresponding with NLM about matters relating to your license or leased databases.


MEDLINE/PubMed Update File May 3, 2012

May 3, 2012

There will not be a MEDLINE/PubMed update file on the server today, May 3, 2012, due to technical difficulties at NLM. We will resume our regular update schedule when these problems are resolved.


MEDLINE/PubMed Data Changes

February 17, 2012

The following data changes are in effect:

  1. Now using VersionID and VersionDate attributes of the MedlineCitation element and values other than “1” for the Version attribute of the PMID element.

    NLM creates an individual citation for each article’s version and links the versions via attributes for the MedlineCitation and PMID elements (http://www.nlm.nih.gov/archive/20110328/bsd/licensee/announce/2010.html#2010CHANGES). Until now we had only PMID Version="1" and did not use the new attributes for the MedlineCitation element, for example:

    <MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE">
    <PMID Version="1">20029614</PMID>
    

    Starting in February 2012, we use the VersionID and VersionDate attributes of the MedlineCitation element and values other than "1" for the Version attribute of the PMID element, for example:

    <MedlineCitation Owner="NLM" Status="In-Data-Review" VersionID="10" VersionDate="2010/04/19">
    <PMID Version="10">20029614</PMID>
    

    Information on versioning in PubMed is available in the NLM Technical Bulletin article title "Versioning in PubMed" at http://www.nlm.nih.gov/pubs/techbull/jf12/jf12_pm_versioning.html.

  2. Version number for OtherID Source="NLM".

    PubMed Central identifiers in the OtherID element may now include a version number in the format pmcid.version, e.g.:

    <OtherID Source="NLM">PMC2762775.2</OtherID>
    

    We will update the MEDLINE®PubMed® XML Element Descriptions and their Attributes at http://www.nlm.nih.gov/bsd/licensee/elements_descriptions.html as soon as possible.


Catfile, CatfilePlus, and Serfile MARC 2012 Baseline Files Now Available

January 9, 2012

The updated 2012 MARC base files for Catfile, CatfilePlus, and Serfile are available on the NLM FTP server. These base files are each complete in a single file. Loading the base files on an annual basis is optional for MARC subscribers. If you have correctly loaded each of the update files, there is no need to reload the base files. The MARC file containing all the bibliographic records deleted by NLM between January 1, 2011 and December 31, 2011, will be available no later than February 1, 2012. Licensees who are new recipients of NLM MARC bibliographic records in 2012, as well as ongoing licensees who are discarding their pre-2012 records and reloading with the 2012 base files, do NOT need the delete file. The records in this file were removed from the NLM database prior to the pull of the 2012 base files. If loading new baseline files, you should then load the 2012 update files dated after the date of the base files.


MeSH Descriptor Corrected

December 23, 2011

There was an incorrect MeSH descriptor in the 2012 XML MeSH Descriptor Records. The MeSH heading “Positron-Emission Tomography/Computed Tomography” includes a forward slash (/) and this is incorrect. NLM corrected the heading to “Positron-Emission Tomography and Computed Tomography.” If you downloaded the 2012 MeSH Descriptor Records prior to 12/19/2011 you should download them again, or correct this descriptor. As a reminder, the MeSH Files Available to Download are at http://www.nlm.nih.gov/mesh/filelist.html.


MEDLINE/PubMed Baseline Data; CatfilePlus and Serfile XML Baseline Files

December 14, 2011

2012 MEDLINE/PubMed Baseline Data

  1. AVAILABILITY OF 2012 MEDLINE/PUBMED BASELINE DATA
    The 2012 MEDLINE/PubMed baseline files, which replace all previously distributed MEDLINE/PubMed data are now available for FTP. Licensees have been e-mailed the location of the FTP access instructions with additional information.

  2. 2012 UPDATE FILES
    The first group of 2012 update files and the special PMID list text file (see item 3 below) are also available. Please be sure to read the _notes.txt file that is on the server accompanying the first update file medline12n0685. Update files should be processed after the baseline files in ascending file name numeric sequence (see item 3 below for exception) to ensure that all new records are added and the most current and accurate version of each record is retained.

    SPECIAL NOTE: The 33 records listed below by PMID and distributed in the update files medline12n0685 through medline12n0705 include the MeSH heading “Positron-Emission Tomography/Computed Tomography.” The forward slash (/) in the heading is incorrect. We corrected the heading to “Positron-Emission Tomography and Computed Tomography” and exported the records again in update file medline12n0706.

    PMID PMID PMID PMID PMID
    20884128 20888130 20933343 21440334 21440958
    21465110 21468763 21514975 21514978 21553087
    21553158 21553160 21565398 21567252 21617977
    21626438 21632132 21655905 21719136 21784544
    21786095 21786097 21825837 21825838 21825839
    21825852 21825853 21825855 21855972 21876401
    21914229 21926377 22046717    


  3. ADDITIONAL PMID LIST FILE
    A text file containing PMIDs of records in MedlineCitation Status = In-Process and MedlineCitation Status = In-Data-Review that have been retained in the 2012 version of PubMed at the time the 2012 baseline files were loaded and that are not exported to licensees in the first batch of update files is available. These records will eventually be exported in update files as completed records in MedlineCitation Status = MEDLINE or MedlineCitation Status = PubMed-not-MEDLINE or as deleted PMIDs in DeleteCitationSet. Licensees who wish to create a database as close as possible to the record content in PubMed on December 14, 2011 will want to include these records now.

    The file, named SpecialPubMedPMIDList_2012.txt, resides in the update file directory. Licensees may use the Entrez Utilities to download the records using the list of PMIDs.

    *IMPORTANT*: If you elect to add these records to your version of MEDLINE/PubMed, they must be added to your 2012 MEDLINE/PubMed database either 1) immediately after the baseline files and before any update files or, 2) immediately after update files medline12n0685 through medline12n0702 to ensure retaining the most current version of those records as subsequent update files are loaded. Do not add the records identified in SpecialPubMedPMIDList_2012.txt after you have processed medline12n0703 as this may result in retention of an earlier and inaccurate version of the records.

  4. 2011 MEDLINE/PUBMED FILES TO MOVE TO NEW DIRECTORY
    The 2011 update files have moved to a new directory where they will remain for several weeks. Contact NLM at NLMdatadistrib@nlm.nih.gov if you need access to those files.

  5. DOCUMENTATION
    Documentation for the MEDLINE/PubMed baseline database is available from links in the Data Availability and Maintenance section of the NLM information page for MEDLINE/PubMed licensees. Also see the MEDLINE/PubMed Maintenance Overview for information about and points to consider for processing update files. Announcements during the year will be added as they become available.

  6. MEDLINE/PUBMED BASELINE REPOSITORY (MBR)
    The 2012 baseline data will be included at a later date in the MEDLINE/PubMed Baseline Repository (MBR) resources. If you wish to search the baseline data via the MBR Query Tool, be sure to use the same IP address registered with NLM for access to MEDLINE/PubMed from the NLM FTP server.

CatfilePlus and Serfile XML Baseline Files

The updated XML base files for CatfilePlus and Serfile are available on the NLM FTP server. CatfilePlus is in 4 parts, named "catplusbase1of4.2012.xml", "catplusbase2of4.2012.xml", etc. The Serfile base file is complete in a single file, named "serfilebase.2012.xml". The baseline files contain all records through November 18, 2011 and should be used to completely replace all records previously distributed. The first XML update files for CatfilePlus and Serfile were made available November 25, 2011.