1. National Center for Fetal Medicine; St. Olav's Hospital; Trondheim University Hospital; Trondheim Norway
2. Department for Laboratory Medicine, Children's and Women's Health; Norwegian University of Science and Technology; Trondheim Norway
3. Unit for Applied Clinical Research; Department for Cancer Research and Molecular Medicine; Norwegian University of Science and Technology; Trondheim Norway
4. Department of Endocrinology; St. Olav's Hospital; Trondheim University Hospital; Trondheim Norway
5. Department of Obstetrics and Gynecology; St. Olav's Hospital; Trondheim University Hospital; Trondheim Norway