title: Evidence from randomized controlled trials, meta-analyses, and subgroup analyses.
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Bolland
authors.forename: Andrew
authors.initials: A
authors.lastname: Grey
authors.forename: Ian R
authors.initials: IR
authors.lastname: Reid
mesh_terms: D064420:Drug-Related Side Effects and Adverse Reactions; D019317:Evidence-Based Medicine; D006801:Humans; D015201:Meta-Analysis as Topic; D016032:Randomized Controlled Trials as Topic; D018401:Sample Size