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Articles
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Why Citations to Older Articles May Display Before More Recent Ones in PubMed
April 19, 2002 [posted]
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Technical Notes
Unified Medical Language (UMLS) Knowledge Sources (2002AA) and the New UMLS Knowledge Source Server Available
April 24, 2002 [posted]
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CCRIS®, ChemIDplus, DIRLINE®, Gene-TOX, HSDB®, and TOXLINE® Special Now Distributed to Licensees in XML Format
February 24, 2002 [posted]
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