title: Preventing bias in cluster randomised trials.
authors.affiliation: INSERM, CIC 202, Tours, France. giraudeau@med.univ-tours.fr
authors.forename: Bruno
authors.initials: B
authors.lastname: Giraudeau
authors.forename: Philippe
authors.initials: P
authors.lastname: Ravaud
mesh_terms: D015982:Bias; D006801:Humans; D017410:Practice Guidelines as Topic; D016032:Randomized Controlled Trials as Topic / Q000592:standards*