1. Fetal Medicine Unit, Department of Obstetrics and Gynecology Copenhagen University Hospital Herlev, Herlev Denmark
2. Center of Fetal Medicine and Pregnancy, Department of Obstetrics Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
3. Department of Clinical Medicine, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
4. Department of Obstetrics and Gynecology Nordsjaellands Hospital Hillerød Denmark
5. Fetal Medicine Unit, Department of Obstetrics and Gynecology Odense University Hospital Odense Denmark
6. Fetal Medicine Unit, Department of Obstetrics and Gynecology Aarhus University Hospital Skejby Denmark
7. Department of Obstetrics and Gynecology Sydvestjysk Hospital Esbjerg Denmark
8. Fetal Medicine Unit, Department of Obstetrics and Gynecology Copenhagen University Hospital Hvidovre, Hvidovre Denmark