Thursday, April 28, 2011

NLM Classification Updated

News from the National Library of Medicine.
The online National Library of Medicine Classification, available at, has been issued in a newly revised edition as of April 28, 2011.

Forty-six (46) new class numbers were added and three (3) class numbers were canceled. Sixty-nine (69) MeSH terms were added to the index, including forty-one (41) new to the MeSH vocabulary as of 2011; in addition, one hundred and seventy-eight (178) class number captions or schedule notes and six hundred and six (606) index entries were modified since the 2010 edition was published on April 29, 2010.

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