1. Department of Clinical Science, University of Bergen , Bergen, Norway
2. Department of Medicine, Haukeland University Hospital , Bergen, Norway
3. Department of Medical Genetics, Haukeland University Hospital , Bergen, Norway
4. Department of Gynecology and Obstetrics, Haukeland University Hospital , Bergen, Norway
5. Department of Molecular Medicine and Surgery, Karolinska Institutet , Stockholm, Sweden
6. Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital , Stockholm, Sweden