title: Placebo controlled trials.
authors.affiliation: Centre for Medical and Healthcare Education, St George's, University of London, London, UK.
authors.forename: Philip
authors.initials: P
authors.lastname: Sedgwick
authors.forename: Carwyn
authors.initials: C
authors.lastname: Hoope
mesh_terms: D001552:Benzazepines / Q000627:therapeutic use; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D018722:Nicotinic Agonists / Q000627:therapeutic use; D010919:Placebos / Q000627:therapeutic use*; D011810:Quinoxalines / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic / Q000941:ethics / Q000592:standards*; D012107:Research Design / Q000592:standards*; D020340:Tobacco Use Cessation; D014029:Tobacco Use Disorder / Q000188:drug therapy; D014030:Tobacco, Smokeless; D000068580:Varenicline
chemical_list: D001552:Benzazepines; D018722:Nicotinic Agonists; D010919:Placebos; D011810:Quinoxalines; D000068580:Varenicline