1. Unit of Fetal Medicine and Prenatal Diagnosis Institute for Maternal and Child Health, IRCCS Burlo Garofolo Trieste Italy
2. Department of Medicine, Surgery and Health Sciences University of Trieste Trieste Italy
3. Fetal Medicine Unit St George's University Hospitals NHS Foundation Trust, University of London London UK
4. Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute St George's University of London London UK
5. Maternal and Fetal Health Research Centre, School of Medical Sciences, Faculty of Biology, Medicine and Health University of Manchester Manchester UK
6. St Mary's Hospital, Manchester University Hospitals NHS Foundation Trust Manchester Academic Health Science Centre Manchester UK
7. Department of Women's and Children's Health University of Liverpool Liverpool UK
8. Liverpool Women's Hospital NHS Foundation Trust Liverpool UK
9. Institute of Developmental and Reproductive Biology, Department of Metabolism, Digestion and Reproduction Imperial College London London UK
10. Department of Fetal Medicine, Queen Charlotte's and Chelsea Hospital Imperial College NHS Trust London UK