title: Systematic reviews of diagnostic accuracy studies require study by study examination: first for heterogeneity, and then for sources of heterogeneity.
authors.affiliation: Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer, Center 1275 York Avenue, New York, NY 10021, USA. beggc@mskcc.org
authors.forename: Colin B
authors.initials: CB
authors.lastname: Begg
mesh_terms: D000704:Analysis of Variance; D003951:Diagnostic Errors; D015201:Meta-Analysis as Topic; D016017:Odds Ratio; D017594:Publication Bias; D018401:Sample Size; D013223:Statistics as Topic / Q000379:methods