Surgery as placebo: a quantitative study of bias. 1961.
Beecher
Henry K
HK
D000787:Angina Pectoris / Q000266:history / Q000601:surgery; D015982:Bias; D013502:General Surgery / Q000941:ethics / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D015990:Placebo Effect; D010919:Placebos / Q000266:history*
D010919:Placebos