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. Department of Epidemiology Harvard T.H. Chan School of Public Health Boston MA USA
4. Division of Women's Health Department of Medicine Brigham and Women's Hospital Boston MA USA
5. Division of Endocrinology Department of Medicine Brigham and Women's Hospital Boston MA USA
6. Channing Division of Network Medicine Department of Medicine Brigham and Women's Hospital Harvard Medical School Boston MA USA
7. Department of Obstetrics, Gynecology, and Reproductive Biology College of Human Medicine Michigan State University Grand Rapids MI USA