1. Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.
2. Department of Obstetrics and Gynecology, Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway.
3. Center for Oral Health Services and Research, Mid-Norway (TkMidt), Trondheim, Norway.
4. Faculty of Nursing and Health Sciences, Nord University, Levanger, Norway.
5. Department of Obstetrics and Gynecology, St. Olavs University Hospital, Trondheim, Norway.
6. Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
7. Department of Endocrinology, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
8. Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
9. Division of Cancer Medicine, Department of Clinic Service, Oslo University Hospital, Oslo, Norway.
10. Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, Massachusetts, USA.
11. Harvard Medical School, Boston, Massachusetts, USA.
12. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
13. Department of Medicine, Division of Women's Health, Brigham and Women's Hospital, Boston, Massachusetts, USA.
14. Connors Center for Women's Health and Gender Biology, Brigham and Women's Hospital, Boston, Massachusetts, USA.