title: Variability in patterns of drug usage.
authors.affiliation: Department of Pharmaco-epidemiology and Pharmacotherapy, Utrecht University, The Netherlands.
authors.forename: H G
authors.initials: HG
authors.lastname: Leufkens
authors.forename: J
authors.initials: J
authors.lastname: Urquhart
mesh_terms: D004358:Drug Therapy; D004363:Drug Utilization; D006801:Humans; D010349:Patient Compliance; D004364:Pharmaceutical Preparations / Q000378:metabolism*; D017891:Pharmacoepidemiology
chemical_list: D004364:Pharmaceutical Preparations