1 Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK email@example.com.
2 NIHR Bristol Biomedical Research Centre, Bristol, UK.
3 Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK.
4 NIHR CLAHRC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
5 School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
6 METHODS team, Epidemiology and Biostatistics Centre, INSERM UMR 1153, Paris, France.
7 Paris Descartes University, Paris, France.
8 Cochrane France, Paris, France.
9 Population Health Research Institute, St George's, University of London, London, UK.
10 Centre for Reviews and Dissemination, University of York, York, UK.
11 Pragmatic Clinical Trials Unit, Centre for Primary Care and Public Health, Queen Mary University of London, UK.
12 MRC Population Heath Research Unit, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
13 Departments of Epidemiology and Biostatistics, Harvard T H Chan School of Public Health, Harvard-MIT Division of Health Sciences of Technology, Boston, MA, USA.
14 Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
15 Centre for Evidence-Based Medicine Odense, Odense University Hospital, Odense, Denmark.
16 Department of Clinical Research, University of Southern Denmark, Odense, Denmark.
17 Open Patient data Explorative Network, Odense University Hospital, Odense, Denmark.
18 Department of Emergency Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
19 Applied Health Research Centre, Li Ka Shing Knowledge Institute, St Michael's Hospital, Department of Medicine and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.
20 Centre for Biostatistics, University of Manchester, Manchester, UK.
21 Editorial and Methods Department, Cochrane Central Executive, London, UK.
22 Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
23 Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
24 Nuffield Department of Population Health, University of Oxford, Oxford, UK.
25 Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, McGill University, Montreal, Quebec, Canada.
26 MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
27 MRC Clinical Trials Unit, University College London, London, UK.