QUAD routes out inferior drugs.
D002170:Canada; D003132:Commerce; D004341:Drug Evaluation; D004345:Drug Industry / Q000592:standards; D005252:Fees, Pharmaceutical; D006077:Government Agencies; D007603:Jurisprudence; D007880:Legislation, Drug; D004364:Pharmaceutical Preparations / Q000032:analysis / Q000592:standards*; D011786:Quality Control; D013810:Therapeutic Equivalency
D004364:Pharmaceutical Preparations