1. Institute of Medicine, Department of Public Health and Community, Primary Health Care, Sahlgrenska Academy, University of Gothenburg,
Gothenburg, Sweden
2. R&D Centre Skaraborg Primary Care,
Skövde, Sweden
3. Mölnlycke Primary Health Care and Research Centre, Sweden
4. Institute of Clinical Sciences/Department of Surgery, Sahlgrenska Academy, University of Gothenburg,
Gothenburg, Sweden
5. Department of Internal Medicine, Skaraborg Hospital,
Skövde, Sweden