1. Professor, Department of Family Medicine, University of Iceland and Centre of Development, Primary Health Care of the Capital Area, Reykjavik, Iceland
2. Professor, General Practice Research Unit, Department of Public Health and General Practice, Norwegian University of Science and Technology (NTNU), Trondheim, Norway and Landspitali University Hospital, Reykjavík, Iceland
3. General practitioner, Kvartersakuten Mörby Centrum, Danderyd, Sweden
4. Clinical Teacher, Family Medicine, University of Turku, Turku University Hospital, Turku, Finland
5. Associate Research professor, Research Unit and Section for General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark