1. Department of Ophthalmology, Helsingborg Hospital, Helsingborg, Sweden
2. Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
3. Department of Medicine, South Hospital, Stockholm, Sweden
4. Department of Medicine, Huddinge Hospital, Stockholm, Sweden
5. Department of Medicine, Linköping University Hospital, Linköping, Sweden
6. Department of Medicine, Uppsala University Hospital, Uppsala, Sweden
7. Department of Endocrinology, Malmö University Hospital, Malmö, Sweden