title: Controlled trials: the 1948 watershed.
authors.affiliation: Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Radcliffe Infirmary, Oxford OX2 6HE.
authors.forename: R
authors.initials: R
authors.lastname: Doll
mesh_terms: D002986:Clinical Trials as Topic / Q000266:history* / Q000379:methods / Q000639:trends; D004992:Ethics, Medical / Q000266:history; D049673:History, 20th Century; D016032:Randomized Controlled Trials as Topic / Q000266:history / Q000379:methods / Q000639:trends