Data from: Placebo effects in trials evaluating 12 selected minimally invasive interventions: a systematic review and meta-analysis

Robin Holtedahl, Jens Ivar Brox & Ole Tjomsland
Objectives: To analyse the impact of placebo effects on outcome in trials of selected minimally invasive procedures and to assess reported adverse events in both trial arms. Design: A systematic review and meta-analysis. Data sources and study selection: We searched MEDLINE and Cochrane library to identify systematic reviews of musculoskeletal, neurological and cardiac conditions published between January 2009 and January 2014 comparing selected minimally invasive with placebo (sham) procedures. We searched MEDLINE for additional randomised...
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