title: Selection-related bias, an ongoing concern in doing and publishing research.
authors.forename: J André
authors.initials: JA
authors.lastname: Knottnerus
authors.forename: Peter
authors.initials: P
authors.lastname: Tugwell
mesh_terms: D006801:Humans; D011643:Publishing / Q000592:standards*; D016032:Randomized Controlled Trials as Topic; D012107:Research Design / Q000592:standards*; D015983:Selection Bias