title: The efficacy paradox in randomized controlled trials of CAM and elsewhere: beware of the placebo trap.
authors: H
authors: H
authors: Walach
mesh_terms: D000529:Complementary Therapies; D006801:Humans; D015990:Placebo Effect; D011786:Quality Control; D011897:Random Allocation; D016032:Randomized Controlled Trials as Topic / Q000379:methods* / Q000592:standards*