1 Centre for General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
2 Lisa Schwartz Foundation for Truth in Medicine, Norwich, Connecticut, USA.
3 Musculoskeletal Health and Wiser Health Care Units, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
4 General Practice, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
5 Global Center for Sustainable Healthcare, Gothenburg, Sweden.
6 Center for Medicine and the Media, The Dartmouth Institute for Health Policy and Clinical Practice, Dartmouth University, Lebanon, New Hampshire, USA.
7 Centre for Cancer and Organ Diseases, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.
8 Cochrane Denmark, University of Southern Denmark, Odense, Denmark.
9 Lisa Schwartz Foundation for Truth in Medicine, Norwich, Connecticut, USA tim.wilt@va.gov.
10 Minneapolis VA Center for Care Delivery and Outcomes Research, Minneapolis, Minnesota, USA.
11 Wiser Healthcare, Sydney School of Public Health, The University of Sydney, Sydney, New South Wales, Australia.