Technical Notes - e1
Year-End Processing - e2
MEDLINE Data Changes Expected - e6
Hands On - e7
MEDLINE® Data Changes Expected
2. NLM will "index through" more journals, greatly reducing the number of selectively indexed journal titles. This change is also tied to 2000 year of publication issues and reflects the general expansion of PubMed and MEDLINE into life sciences (http://www.nlm.nih.gov/pubs/techbull/nd99/nd99_scope.html). The small number of journals that will continue to be indexed selectively will be those that routinely include articles that are completely unrelated to medicine or the life sciences. Examples of those journals include general science journals, e.g., Science and Nature, which publish articles on subjects such as plate tectonics and quantum physics, and single-subject journals not directly related to the life sciences (chemistry, radiation, electronics, etc.), e.g., Acta Chem Scand and J Electron Microsc (Tokyo). For citations created from the new data creation system regardless of the data entry stream (SGML, keyboarding, or scanning/optical character recognition), articles that are out-of-scope will have citations that are reviewed for bibliographic accuracy and completeness, as is currently the case for citations coming from the SGML data entry stream only. These citations for out-of-scope articles will not be indexed with MeSH but will appear in the PubMed database.
3. NLM will institute a corporate author field. In the past, corporate authors were included in the title field of a MEDLINE citation where they could be text word and title text word searchable. NLM has no plans to go back and maintain existing records that have corporate author identification included in article titles. The separate field is for new, prospective citations. As with personal authors, NLM will take corporate names as they are published in the article; no authority control will be done for corporate names. Corporate authors must appear in the authorship area of the article or they will not be added to PubMed. The tentative plan for PubMed retrieval is to have this new field be text word searchable.
4. The first author affiliation for the address field will no longer be edited to delete street information or redundant data. NLM will enter affiliation information as it appears in the article or take it as it is transmitted electronically to NLM from publishers. NLM will continue to add the e-mail address to the affiliation for the first author when available from the text, and the country designation of USA as appropriate.
5. There will be no limit on the length of abstracts. Currently the maximum length is 4,096 characters which is rarely reached. (NLM stopped truncating abstracts at the 250-word or 400-word limits effective on January 1, 1996.)