1 Institute of General Practice, Universitätsklinikum Erlangen, Germany.
2 The BMJ, London, United Kingdom.
3 The Lisa Schwartz Foundation for Truth in Medicine Norwich, VT/USA.
4 Global Center for Sustainable Healthcare, Gothenburg, Sweden.
5 Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH/USA.
6 Sydney Health Literacy Lab, Wiser Healthcare, Faculty of Medicine and Health, School of Public Health, The University of Sydney, Sydney, NSW, Australia.
7 Centre of Research & Education in General Practice, Department of Public Health, Faculty of Health Sciences, University of Copenhagen; Primary Health Care Research Unit, Region Zealand and Research Unit for General Practice, Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø Odense University Hospital Odense, Denmark and Cochrane Collaboration, Oxford, United Kingdom.
8 Wiser Healthcare, Faculty of Medicine and Health, School of Public Health, The University of Sydney, Sydney, NSW, Australia.
9 Herrestads Healthcare Centre, Närhälsan, Denmark; Global Center for Sustainable Healthcare, Gothenburg Denmark; University, FoUUI Fyrbodal, Cochrane Sweden.
10 Centre of Research & Education in General Practice, Department of Public Health, Faculty of Health Sciences, University of Copenhagen; Primary Health Care Research Unit, Region Zealand, Denmark.
11 Institut and Polyclinic of General Practice, Universitätsklinikum Hamburg Eppendorf, Hamburg, Germany.