title: Assessing the risk of a necessary harm: placebo surgery in Parkinson disease.
authors.forename: Olivier
authors.initials: O
authors.lastname: Rascol
mesh_terms: D001921:Brain / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D002986:Clinical Trials as Topic / Q000592:standards*; D000075202:Contraindications; D006801:Humans; D009493:Neurosurgery / Q000941:ethics / Q000379:methods / Q000592:standards; D019635:Neurosurgical Procedures / Q000941:ethics* / Q000592:standards*; D010300:Parkinson Disease / Q000601:surgery*; D018579:Patient Selection / Q000941:ethics; D015990:Placebo Effect; D010919:Placebos / Q000009:adverse effects / Q000592:standards; D018570:Risk Assessment
chemical_list: D010919:Placebos