Can objective endpoints be manipulated in unmasked trials?
Biometry Research Group, National Cancer Institute, Executive Plaza North, Suite 3131, 6130 Executive Boulevard, MSC 7354, Bethesda, MD, 20892-7354, U.S.A.. .Statistics in Medicine (Impact Factor: 1.83). 12/2011; 30(30):3573-4; author reply 3575. DOI: 10.1002/sim.4312
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