1. Department of Public Health, Aarhus University, Aarhus, Denmark
2. Center for Fetal Diagnostics, Aarhus University Hospital, Aarhus, Denmark
3. Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
4. Fetal Medicine Unit, Department of Obstetrics and Gynaecology, Aarhus University Hospital, Aarhus, Denmark
5. DEFACTUM, Public Health & Health Services Research, Central Denmark Region, Aarhus, Denmark