Apples, oranges, and placebos: heterogeneity in a meta-analysis of placebo effects.
Kirsch
I
I
University of Connecticut, USA.
Scoboria
A
A
D019317:Evidence-Based Medicine; D006801:Humans; D015201:Meta-Analysis as Topic; D015990:Placebo Effect; D010919:Placebos; D012107:Research Design
D010919:Placebos