title: Assessing risk of bias in randomised clinical trials included in Cochrane Reviews: the why is easy, the how is a challenge.
authors.affiliation: Nordic Cochrane Centre, Copenhagen, Denmark.
authors.forename: Asbjørn
authors.initials: A
authors.lastname: Hróbjartsson
authors.forename: Isabelle
authors.initials: I
authors.lastname: Boutron
authors.forename: Lucy
authors.initials: L
authors.lastname: Turner
authors.forename: Douglas G
authors.initials: DG
authors.lastname: Altman
authors.forename: David
authors.initials: D
authors.lastname: Moher
mesh_terms: D015982:Bias; D016032:Randomized Controlled Trials as Topic / Q000592:standards* / Q000706:statistics & numerical data; D012196:Review Literature as Topic; D018570:Risk Assessment / Q000379:methods