Product News

MEDLINE Reload - Updated MeSH Vocabulary and Two New Fields on STN

January  30th,   2012

New features and enhancements are now available with the STN reload of MEDlars onLINE (MEDLINE/LMEDLINE), produced by the U.S. National Library of Medicine (NLM).

Revised 2012 MeSH
The revised MeSH (Medical Subject Headings) vocabulary for 2012 was loaded on STN on December 11, 2011. MEDLINE records have been completely updated using the 2012 version of the MeSH vocabulary. 

Changes to the MeSH vocabulary include:

For the most comprehensive searching in MEDLINE, consult the updated MeSH thesaurus for new or better search terms.

Review your SDIs running in MEDLINE with the new MeSH vocabulary to determine whether updating is necessary.

New Search Fields
The new RE.EX and RAU.EX search fields provide expanded capabilities for searching cited reference and cited reference author information.

RAU.EX Search Field
MEDLINE searches using the new RAU.EX field automatically retrieve reference author names with single initials even when multiple initials are used in the search query. This expands the number of results retrieved. 

     => S WELSH T H?/RAU
     L22         19 WELSH T H?/RAU
     => S WELSH T H?/RAU.EX
                 51 WELSH T?/RAU
                 19 WELSH T H?/RAU
     L23         51 WELSH T H?/RAU.EX
                      (WELSH T?/RAU OR WELSH T H?/RAU)

The new RE.EX field for cited references works similarly to the RAU.EX search field for cited reference authors.

Evaluate the relevance of additional results retrieved using RE.EX and RAU.EX.

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