title: Understanding clinical trials.
authors.forename: D L
authors.initials: DL
authors.lastname: Sackett
authors.forename: R J
authors.initials: RJ
authors.lastname: Cook
mesh_terms: D000959:Antihypertensive Agents / Q000627:therapeutic use; D002561:Cerebrovascular Disorders / Q000517:prevention & control; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D016032:Randomized Controlled Trials as Topic; D012307:Risk Factors; D016896:Treatment Outcome
chemical_list: D000959:Antihypertensive Agents