title: Historical studies: should you believe the results?
authors.forename: V A
authors.initials: VA
authors.lastname: Clark
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards / Q000706:statistics & numerical data; D015331:Cohort Studies; D004992:Ethics, Medical; D006801:Humans; D012107:Research Design / Q000592:standards* / Q000706:statistics & numerical data