1. Department of Clinical and Biomedical Sciences University of Exeter Exeter UK
2. Fetal Medicine Unit Shterev Hospital Sofia Bulgaria
3. Fetal Medicine Unit Hospital Universitario San Cecilio Granada Spain
4. Fetal Medicine Unit Medway Maritime Hospital Gillingham UK
5. Harris Birthright Research Centre for Fetal Medicine King's College Hospital London UK
6. Center for Fetal Medicine, Pregnancy and Ultrasound, Department of Obstetrics Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark
7. Faculty of Health and Medical Sciences, Department of Clinical Medicine University of Copenhagen Copenhagen Denmark