title: Clinical trials in stroke prevention--persisting uncertainties, firm answers.
authors.forename: H J
authors.initials: HJ
authors.lastname: Barnett
authors.forename: D W
authors.initials: DW
authors.lastname: Taylor
mesh_terms: D002561:Cerebrovascular Disorders / Q000517:prevention & control*; D002986:Clinical Trials as Topic; D006801:Humans; D015337:Multicenter Studies as Topic; D016032:Randomized Controlled Trials as Topic; D012107:Research Design