1. Department of Obstetrics and Gynecology (USK, SSN) Herlev University Hospital Herlev Denmark
2. Department of Clinical Medicine (USK) University of Copenhagen Copenhagen Denmark
3. Center for Healthy Aging (ELM) Institute of Public Health University of Copenhagen Copenhagen Denmark
4. Centers for Disease Control and Prevention (CDC) (JB, CHD) Atlanta Georgia
5. University of Washington (AG) Seattle Washington
6. Departments of Epidemiology and Pediatrics (SAH) University of Washington Seattle Washington