Placebos and Placebo Effects in Medicine: Historical Overview
de Craen, Anton J. M.
Kaptchuk, Ted J.
Tijssen, Jan G. P.
Journal of the Royal Society of Medicine 1999 October; 92: 511-515
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De Blasi, Zelda; Kaptchuk, Ted J.; Weinman, John; Kleijnen, Jos (2002-12-07)OBJECTIVES: To assess whether and how investigators of placebo controlled randomised trials inform participants of their treatment allocation at trial closure and to assess barriers to feedback. DESIGN: Postal survey with ...