Hróbjartsson, Asbjørn4; Kaptchuk, Ted J3; Miller, Franklin G3
1 Department of Clinical Medicine, Faculty of Health and Medical Sciences, Københavns Universitet2 Department of Pharmacology Pharmacotherapy, Faculty of Pharmaceutical Sciences, Københavns Universitet3 unknown4 Department of Pharmacology Pharmacotherapy, Faculty of Pharmaceutical Sciences, Københavns Universitet
Investigations of the effect of placebo are often challenging to conduct and interpret. The history of placebo shows that assessment of its clinical significance has a real potential to be biased. We analyze and discuss typical types of bias in studies on placebo.
Journal of Clinical Epidemiology, 2011, Vol 64, Issue 11, p. 1223-9