title: Placebos in medicine: is placebo analgesia always in the mind?
authors.forename: Peter K K
authors.initials: PK
authors.lastname: Au-Yeung
mesh_terms: D006801:Humans; D009270:Naloxone / Q000627:therapeutic use; D009292:Narcotic Antagonists / Q000627:therapeutic use; D010146:Pain / Q000517:prevention & control*; D015990:Placebo Effect; D010919:Placebos / Q000627:therapeutic use*
chemical_list: D009292:Narcotic Antagonists; D010919:Placebos; D009270:Naloxone