1. Department of Obstetrics and Gynecology Odense University Hospital Odense C Denmark
2. Institute of Clinical Research University of Southern Denmark Odense C Denmark
3. OPEN, Odense Patient data Explorative Network Odense University Hospital Odense C Denmark
4. Department of Obstetrics Copenhagen University Hospital (Rigshospitalet) Copenhagen Ø Denmark
5. The Research Unit Women’s and Children’s Health Juliane Marie Centre Copenhagen University Hospital (Rigshospitalet) Copenhagen N Denmark
6. Department of Clinical Medicine University of Copenhagen Copenhagen N Denmark
7. Department of Obstetrics and Gynecology Hvidovre University Hospital Hvidovre Denmark
8. Department of Clinical Medicine Aalborg University Aalborg Denmark
9. Department of Obstetrics and Gynecology Aalborg University Hospital Aalborg Denmark
10. Department of Pediatrics (Intensive Care Neonatology) Aarhus University Hospital Aarhus N Denmark
11. Perinatal Epidemiology Research Unit Department of Pediatrics Aarhus University Hospital Aarhus N Denmark