美国国立医学图书馆（NLM)每年10月初发布下年度医学主题词表(MeSH)网络版，MeSH每年更新，进行主题词的增、删、改，如此高效的主题词表管理在国际信息检索系统中是很少的。值得中国同行的学习借鉴。

What's New

 2015 MeSH Files Available   http://www.nlm.nih.gov/mesh/

2015 MeSH  可下载的各类版本

• These formatted versions of the entire MeSH vocabulary are available to download. For best results in downloading, use of a graphical interface is recommended.
  

  • 2015 MeSH in XML format. MeSH descriptors and qualifiers, and Supplementary Concept Records (formerly Supplementary Chemical Records) in XML format. Files are updated nightly. Supplementary records are compatible with 2015 MeSH descriptors. Descriptor file is 307MB in size, uncompressed. Compressed file is 16MB.
    

    • Sample XML

    • XML Data Elements

    • DTD files

      • Descriptor DTD

      • Qualifier DTD

      • SCR DTD

       

       

       

       

       

       

       

    • About XML MeSH

    • Conversion Table

    • Conversion from ASCII MeSH format to XML

    • Introduction to XML MeSH

     

     

     

     

     

     

     

  • 2015 MeSH in ASCII format. MeSH descriptors and qualifiers, and Supplementary Concept Records (formerly Supplementary Chemical Records), in ASCII format. Files are updated weekly. The descriptor file is 28MB in size and may take more than 30 minutes to download using a connection 2400 bps or slower.
    Note that subfield separator for descriptor entry terms has been changed from a colon to a bar (|) in order to make it easier to parse terms containing colons.

    • Sample Text

    • About ASCII MeSH

     

     

     

     

     

     

     

  • 2015 MeSH Trees 范畴表. MeSH main headings with the tree numbers that place the heading in a hierarchical arrangement. Sorted by tree number. ASCII format. [2.2MB]
    

    • Sample Text

    • About MeSH Trees

     

     

     

     

     

     

     

  • 2015 MeSH in MARC format. MeSH vocabulary data in the USMARC authority format.

   

   

   

   

   

   

   

• These files are also available for 2015 MeSH:

  • Pharmacologic Actions - 2015.

    • Substances with a given Pharmacologic Action - 2015. Forthcoming.

     

     

     

     

     

     

     

  • New Headings with Scope Notes 新主题词注释- 2015. Main headings that are new for 2015 with scope notes (definitions), cross-references, and other information.

  • MeSH Replaced Headings - 2015 替换的主题词. Main headings that have changed form for 2015 or have been deleted.

  • 2015 Descriptors - preferred term only

  • MeSH MN (tree number) Changes - 2015 范畴号变更. Main headings in which there has been a change in the MN (MeSH tree Number) for 2015.

   

   

   

   

   

   

   

http://www.nlm.nih.gov/mesh/filelist.html

MeSH Staff  词表组成员