Uncertainty in heterogeneity estimates in meta-analyses.
Ioannidis
John P A
JP
Clinical Trials and Evidence-Based Medicine Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina 45110, Greece. jioannid@cc.uoi.gr
Patsopoulos
Nikolaos A
NA
Evangelou
Evangelos
E
D003627:Data Interpretation, Statistical; D015201:Meta-Analysis as Topic; D035501:Uncertainty