1 Cochrane Learning and Support Department, United Kingdom
2 Cochrane Editorial Unit, United Kingdom
3 Professor of Evidence Synthesis, School of Social and Community Medicine, University of Bristol, United Kingdom
4 Co-Convenor, Cochrane Information Retrieval Methods Group, United Kingdom
5 Research Fellow, University of Bristol, UK and Monash University, Australia, Australia
6 Assistant Professor, Department of Health Research Methods, Evidence, and Impact, McMaster University, Canada
7 Chair Campbell & Cochrane Economics Methods Group, United Kingdom