Randomised Placebo Controlled Trials in HIV Infection: To Be or Not to Be?
Gelmon, Karen and Weller, I.V.D.
GENITOURINARY MEDICINE 65(3): 143-145, June 1989
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Is Recruitment More Difficult With a Placebo Arm in Randomised Controlled Trials? A Quasirandomised, Interview Based Study Welton, A. J.; Vickers, M. R.; Cooper, J. A.; Meade, T. W.; Marteau, T. M. (1999-04-24)