Assertion: placebo's study | /r/CapableOf | cover 35 clinical trials
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text: In a 2008 study of Prozac (fluoxetine), Effexor (venlafaxine), Serzone (nefazodone), and Seroxat (paroxetine) covering 35 clinical trials that involved 5,133 patients found that the placebo effect accounted for 81% of the effect of these drugs.