title: Bias in meta-analysis detected by a simple, graphical test. Asymmetry detected in funnel plot was probably due to true heterogeneity.
authors.forename: A E
authors.initials: AE
authors.lastname: Stuck
authors.forename: L Z
authors.initials: LZ
authors.lastname: Rubenstein
authors.forename: D
authors.initials: D
authors.lastname: Wieland
mesh_terms: D000368:Aged; D006299:Health Services for the Aged / Q000706:statistics & numerical data; D006801:Humans; D015201:Meta-Analysis as Topic; D017594:Publication Bias; D012017:Referral and Consultation / Q000706:statistics & numerical data*; D006113:United Kingdom