1. Fetal Medicine Unit, Department of Obstetrics and Gynecology; Aarhus University Hospital; Aarhus Denmark
2. Center for Fetal Medicine, Department of Obstetrics; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
3. Department of High Risk Obstetrics; Royal Prince Alfred Hospital; Sydney Australia
4. Centre for Biostatistics, Bioinformatics and Biomarkers; Plymouth University; Plymouth United Kingdom
5. NIHR CLAHRC South West Peninsula (PenCLAHRC); University of Exeter Medical School; Exeter United Kingdom
6. Department of Clinical Genetics; Aarhus University Hospital; Aarhus Denmark