title: Placebos for Knee Osteoarthritis: Reaffirmation of "Needle Is Better Than Pill".
authors.forename: Weiya
authors.initials: W
authors.lastname: Zhang
authors.forename: Kun
authors.initials: K
authors.lastname: Zou
authors.forename: Michael
authors.initials: M
authors.lastname: Doherty
mesh_terms: D006801:Humans; D020370:Osteoarthritis, Knee / Q000188:drug therapy*; D015990:Placebo Effect; D016032:Randomized Controlled Trials as Topic / Q000592:standards*