title: Ongoing innovation in meta-analysis.
authors.forename: J André
authors.initials: JA
authors.lastname: Knottnerus
authors.forename: Peter
authors.initials: P
authors.lastname: Tugwell
mesh_terms: D003627:Data Interpretation, Statistical; D004059:Diffusion of Innovation; D006302:Health Services Research / Q000639:trends*; D006801:Humans; D015201:Meta-Analysis as Topic; D012196:Review Literature as Topic