1. From the Centre of Metabolism and Endocrinology, Huddinge University Hospital, Karolinska Institute, Stockholm, the
2. Department of Internal Medicine, Regional Hospital, Umeå, the
3. Department of Endocrinology and Diabetology, Karolinska Hospital, Stockholm, the
4. Clinical Experimental Research Laboratory, Department of Medicine, SU/Östra University Hospital, Gothenburg, the
5. Department of Internal Medicine, Helsingborg Hospital, Helsingborg and the
6. Department of Geriatrics, University Hospital, Uppsala, Sweden