1. Department of Molecular Medicine and Surgery (E.T., M.N.), Karolinska Institutet, 171 76 Stockholm, Sweden
2. Department of Clinical Genetics (U.G.), Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
3. Department of Endocrinology, Metabolism and Diabetes (E.L.), Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
4. Department of Medicine (G.T.), Section of Endocrinology, University Hospital, 581 83 Linköping, Sweden
5. Department of Medical Sciences (B.S.), Uppsala University, Uppsala University Hospital, 75185 Uppsala, Sweden