title: The use of data bases and historical controls in treatment comparisons.
authors.affiliation: Division of Cancer Prevention and Control, National Cancer Institute, Bethesda, MD 20892-4200.
authors.forename: D P
authors.initials: DP
authors.lastname: Byar
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D007256:Information Systems; D009369:Neoplasms / Q000628:therapy*; D011379:Prognosis; D011897:Random Allocation