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