1. Institutes of Medicine (A.S.B.W., E.S.H.), University of Bergen, N-5021 Bergen, Norway
2. Center of Medical Genetics and Molecular Medicine (A.S.B.W., N.F.M., P.M.K.), Haukeland University Hospital, N-5021 Bergen, Norway
3. Department of Medicine (M.M.E., E.S.H.), Haukeland University Hospital, N-5021 Bergen, Norway
4. Department of Biotherapeutics (A.M.), The National Institute for Biological Standards and Control, South Mimms, Herts EN6 3QG, United Kingdom
5. Clinical Medicine (N.F.M., P.M.K.), University of Bergen, N-5021 Bergen, Norway
6. Department of Pediatrics (A.G.M.), Rikshospitalet-Radiumhospitalet University Hospital, N-0027 Oslo, Norway
7. Department of Medicine (J.B.), Rikshospitalet-Radiumhospitalet University Hospital, N-0027 Oslo, Norway
8. Department of Endocrinology (K.J.F.), St. Olavs Hospital, N-7006 Trondheim, Norway
9. Section of Endocrinology (K.L.), Faculty Division Akershus University Hospital, University of Oslo, 1474 Nordbyhagen, Norway
10. Section of Endocrinology (K.L.), Akershus University Hospital, 1474 Nordbyhagen, Norway