title: Meta-analyses of randomised controlled trials.
authors.forename: P M
authors.initials: PM
authors.lastname: Rothwell
authors.forename: G
authors.initials: G
authors.lastname: Robertson
mesh_terms: D015982:Bias; D006801:Humans; D015201:Meta-Analysis as Topic; D017594:Publication Bias; D016032:Randomized Controlled Trials as Topic