1. Center of Fetal Medicine and Pregnancy, Department of Obstetrics Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
2. Faculty of Health and Medical Sciences Copenhagen University Copenhagen Denmark
3. Fetal Medicine Unit, Department of Obstetrics and Gynecology Copenhagen University Hospital Hvidovre Hvidovre Denmark
4. Department of Clinical Biochemistry Copenhagen University Hospital Rigshospitalet Glostrup Denmark
5. Department of Cardiology Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
6. Department of Obstetrics and Gynecology Copenhagen University Hospital Herlev Herlev Denmark