1. From the Department of Pediatrics, Nordsjællands Hospital, Copenhagen University Hospital, Hillerød, Denmark (S.B., L.C., K.H., G.S.)
2. Department of Endocrinology and Internal Medicine and the Medical Research Laboratories (S.B., A.B., C.H.G.), Aarhus University Hospital, Denmark
3. Section for Biostatistics, Department of Public Health, Aarhus University, Denmark (M.E.)
4. Department of Molecular Medicine (A.B., C.H.G.), Aarhus University Hospital, Denmark
5. Department of Cardiology, Aalborg University Hospital, Denmark (N.H.A.).