title: The rationale for rating risk of bias should be fully reported.
authors.affiliation: Department of Periodontology and Operative Dentistry, Faculty of Dentistry, University of Münster, Waldeyerstraße 30, Münster 48149, Germany. Electronic address: clovisfaggion@yahoo.com.
authors.forename: Clovis Mariano
authors.initials: CM
authors.lastname: Faggion
mesh_terms: D015982:Bias; D012306:Risk