1. Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus N, Denmark.
2. Department of Internal Medicine, Herlev Hospital, Herlev, Hovedstaden, Denmark.
3. Medical Department, Regionshospitalet Horsens, Horsens, Midtjylland, Denmark.
4. Medical Department, Aalborg University Hospital, Aalborg, North Denmark Region, Denmark.
5. Department of Internal Medicine, Regional Hospital Randers, Randers, Denmark.
6. Medical Department, Gødstrup Regional Hospital, Herning, Denmark.
7. Medical Department, Regional Hospital Silkeborg, Silkeborg, Denmark.