1. Departments of Endocrinology and Internal Medicine, Aalborg Hospital (P.L.), DK-9000 Aalborg, Denmark
2. Herlev Hospital (H.V.), DK-2730 Herlev, Denmark
3. Aarhus Hospital (S.N., T.S.), DK-8000 Aarhus, Denmark
4. Aabenraa Hospital (S.E.C.), DK-6200 Aabenraa, Denmark
5. Viborg Hospital (K.H.), DK-8800 Viborg, Denmark
6. Hobro Hospital (K.M.P.), DK-9500 Hobro, Denmark