Source:http://linkedlifedata.com/resource/umls/id/C0376689
MSH: Authoritative works containing lists of drugs and preparations, their description, formulation, analytic composition, main chemical properties, standards for strength, purity, and dosage, chemical tests for determining identity, etc. They have the status of a standard.,NCI: A book describing chemicals, drugs, and other substances and how they are used as medicines. It is prepared by a recognized authority.