NLM Classification Updated, September 21, 2021

The 2021 summer version encompasses the systematic review of the WU (Dentistry. Oral Surgery) and WV (Otolaryngology) schedules.

For more information about the scope of the 2021 summer edition, see

Contact NLM for further information, questions, or comments.




Barbara Bushman
Acting Head

Cataloging and Metadata Management Section
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