1. 1Department of Endocrinology and Internal MedicineAarhus University Hospital, Aarhus, Denmark
2. 2Department of EndocrinologyNational University Hospital, Copenhagen, Denmark
3. 3Department of EndocrinologyOdense University Hospital, Odense, Denmark
4. 4Department of EndocrinologyHerlev Hospital, Copenhagen, Denmark
5. 5Department of EndocrinologyAalborg University Hospital, Aalborg, Denmark
6. 6Department of Clinical EpidemiologyAarhus University Hospital, Aarhus N, Denmark
7. 7Department of MedicineSection of Endocrinology
8. 8Department of Clinical EpidemiologyLeiden University Medical Center, Leiden, The Netherlands