title: Medicaid-based pharmacoepidemiology: claims and counterclaims.
authors.forename: J
authors.initials: J
authors.lastname: Avorn
mesh_terms: D016208:Databases, Factual; D004358:Drug Therapy / Q000706:statistics & numerical data*; D004363:Drug Utilization; D004812:Epidemiologic Methods; D006801:Humans; D008484:Medicaid; D010600:Pharmacology; D014481:United States / Q000453:epidemiology