title: Drug efficacy--double-blind studies.
mesh_terms: D002986:Clinical Trials as Topic; D004341:Drug Evaluation / Q000379:methods*; D006801:Humans; D004364:Pharmaceutical Preparations / Q000592:standards*; D012107:Research Design; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D004364:Pharmaceutical Preparations