More Information about Chemical Searching

For more information about Chemical Searching, see the following NLM Technical Bulletin articles:

Article Title	Technical Bulletin issue link
A New System of Registry Number Identifiers for Chemicals in the MeSH Database	July-August 2012 http://www.nlm.nih.gov/pubs/techbull/ ja12/ja12_fda_unii.html
PubMed® and the Expansion of Pharmacological Action Terms	November-December 2007 http://www.nlm.nih.gov/pubs/techbull/ nd07/nd07_pa_update.html
Pharmacological Action Terms Identified in MeSH® Database	November-December 2003 http://www.nlm.nih.gov/pubs/techbull/ nd03/nd03_pharm.html
Heading Mapped-to Maintenance: for Supplementary Concept Records’ Names of Substance	November-December 2003 http://www.nlm.nih.gov/pubs/techbull/ nd03/nd03_map_to.html
Pharmacologic Action Headings: PubMed®	July-August 2003 http://www.nlm.nih.gov/pubs/techbull/ ja03/ja03_papx.html
Implementation of New Guidelines for the Structure and Nomenclature of Protein Concepts in MeSH	March-April 2003 http://www.nlm.nih.gov/pubs/techbull/ ma03/ma03_protein.html
MEDLINE® Data Changes – 2003 (see section titled “Pharmacological Action (PA) for Supplementary Concept Records”)	November-December 2002 http://www.nlm.nih.gov/pubs/techbull/ nd02/nd02_2003_medline_data_changes.html
Changes in the Treatment of Chemical Data in MEDLINE®	November-December 2001 http://www.nlm.nih.gov/pubs/techbull/ nd01/nd01_mesh_chemical.html

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