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| Medical Subject Headings | |
2008 MeSH/MARC
Download of any of the full data files requires the completion of an online memorandum of understanding.
Conversion Information
- Download NLM 1999 Conversion Specifications (pdf format). This is the most current version. Form, language, and geographic qualifiers (subheadings) have been removed from MeSH. Any reference to these three types of records should be ignored.
- The NLM Conversion Specifications are to be used in conjunction with another document, USMARC Specifications for Record Structure, Character Sets, and Exchange Media for sale by the Cataloging Distribution Service, Library of Congress.
MeSH/MARC files available to download
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.
- Sample file contains 42 descriptor records, 83 qualifier records, and 890 descriptor/qualifier combinations, for a total of 1015 records. Download sample file [320KB]
- Label file provides size and other statistics for the sample file. [73B]
- Label file provides size and other statistics for the sample file. [73B]
- Update-only file contains new and modified terms with 2,376 descriptor records, 11 qualifier records, and 16,168 descriptor/qualifier combinations, for a total of 18,555 records. Download update-only file [6MB]
- Label file provides size and other statistics for the update file. [71B]
- Label file provides size and other statistics for the update file. [71B]
- Full file contains all terms with 24,767 descriptor records, 83 qualifier records, and 556,791 descriptor/qualifier combinations, for a total of 581,641 records. Download full file [143MB]
- Label file provides size and other statistics for the full file. [73B]
| File | Total Records | File Size | Bytes |
|---|---|---|---|
| Full File | 581,641 | 143MB | 149,509,679 |
| Update-only File | 18,555 | 6MB | 6,414,342 |
| Sample File | 1015 | 320KB | 327,356 |
- 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
- email: schulman@nlm.nih.gov
Last updated: 04 December 2007
First published: 26 November 2007
Metadata| Permanence level: Permanent: Dynamic Content