title: Five easy pieces on evidence-based medicine (2).
authors.affiliation: Pain Clinic, Department of Anaesthesia and Intensive Care Medicine, Helsinki University Hospital, Helsinki, Finland. eija.kalso@helsinki.fi
authors.forename: E
authors.initials: E
authors.lastname: Kalso
authors.forename: R A
authors.initials: RA
authors.lastname: Moore
mesh_terms: D004311:Double-Blind Method; D004992:Ethics, Medical; D019317:Evidence-Based Medicine; D006801:Humans; D010919:Placebos; D016032:Randomized Controlled Trials as Topic
chemical_list: D010919:Placebos