1. Departments of Pediatrics (J.S.S., N.H.B., K.K.), DK-8000 Aarhus C, Denmark
2. Department of Pediatrics (J.S.S.), Randers Regional Hospital, DK-8930 Randers, Denmark
3. Aarhus University Hospital, and The Medical Research Laboratory (M.B., J.F.), Department of Clinical Medicine, Faculty of Health, Aarhus University, DK-8000 Aarhus C, Denmark
4. Department of Pediatrics E (F.P.), Herlev University Hospital, DK-2730 Herlev, Denmark
5. Department of Pediatrics (A.S.H.), Aalborg University Hospital, DK-9000 Aalborg, Denmark
6. Endocrinology and Internal Medicine (J.F.), DK-8000 Aarhus C, Denmark