title: The advancement of controlled clinical trials.
authors.forename: Linda
authors.initials: L
authors.lastname: Bren
mesh_terms: D015982:Bias; D018849:Controlled Clinical Trials as Topic / Q000331:legislation & jurisprudence / Q000379:methods / Q000592:standards*; D004305:Dose-Response Relationship, Drug; D049673:History, 20th Century; D006801:Humans; D007880:Legislation, Drug / Q000266:history; D014481:United States