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Type

Journal

Ann Intern Med

Publication Date

05/02/2002

Volume

136

Pages

254 - 259

Keywords

Bias (Epidemiology), Double-Blind Method, History, 18th Century, History, 19th Century, History, 20th Century, Placebos, Random Allocation, Randomized Controlled Trials as Topic, Research Design, Single-Blind Method, Terminology as Topic