The attractiveness of the concept of a prospectively designed two-stage clinical trial.
Chi
G Y
GY
Division of Biometrics I, Center for Drug Evaluation and Research, United States Food and Drug Administration, Rockville, Maryland, USA.
Liu
Q
Q
D004311:Double-Blind Method; D006801:Humans; D008432:Mathematical Computing; D010919:Placebos; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic / Q000379:methods* / Q000592:standards; D012107:Research Design; D013223:Statistics as Topic / Q000379:methods
D010919:Placebos