Skip Navigation Bar

2011 MeSH/MARC

Download of any of the full data files requires the completion of an online memorandum of understanding.

Conversion Information

MeSH/MARC files available to download

Beginning with 2009 MeSH, if any changes in MeSH data are made in the middle of the year, a monthly full file and change file with these changes will be made available. Note that these monthly change files will include only changes made during that month - the changes are not cumulative. Mid-year change files that are available are indicated below.

The data are encoded in MARC-8. These files can only be transferred via FTP into a save file. A file extension of .bin has been used to prompt the local receiving computer to automatically open a file to save the data.

For users of Internet Explorer, if you want to save a file to your local hard drive rather than open it, you must right-click the link and then select Save Target As....

The full file is estimated to take 5 minutes to download on a T3 communications line (at 45 Mbps) and longer on slower lines.

  • Annual files
    • Sample file contains 41 descriptor records, 83 qualifier records, and 869 descriptor/qualifier combinations, for a total of 993 records. Download sample file [318KB]
      • Label file provides size and other statistics for the sample file. [68B]
    • Update-only file contains new and modified terms with 3,364 descriptor records, 42 qualifier records, and 14,063 descriptor/qualifier combinations, for a total of 17,469 records. Download update-only file [6MB]
      • Label file provides size and other statistics for the update file. [77B]
    • Full file contains all terms with 26,142 descriptor records, 83 qualifier records, and 584,465 descriptor/qualifier combinations, for a total of 610,690 records. Download full file [150MB]
      • Label file provides size and other statistics for the full file. [79B]

    Summary contents of files. 2011 MeSH/MARC. September 1, 2010.

    FileTotal RecordsFile SizeBytes
    Full File610,690150MB157,687,228
    Update-only File17,4696MB6,790,707
    Sample File993318KB325,594
If you have questions concerning the content of MeSH/MARC files or FTP of MeSH/MARC data, please contact:
Jacque-Lynne Schulman
Medical Subject Headings
Telephone: 301-496-1495; FAX: 301-402-2002