title: Placebo blocks in local anaesthesia studies: the need for balance.
authors.forename: J
authors.initials: J
authors.lastname: Laffey
mesh_terms: D006801:Humans; D009407:Nerve Block / Q000379:methods*; D010919:Placebos / Q000009:adverse effects*; D016032:Randomized Controlled Trials as Topic / Q000379:methods; D012107:Research Design
chemical_list: D010919:Placebos