1. Fetal Medicine and Surgery Unit- Istituto G.Gaslini; Genoa Italy
2. Department of Women's and Children's Health, Institute of Translational Medicine; University of Liverpool; Liverpool UK
3. Fetal Medicine Unit; St George's University of London
4. Brompton Centre for Fetal Cardiology; Royal Brompton Hospital; London UK
5. Fetal Medicine Unit, Department of Obstetrics and Gynaecology; St George's Hospital; London UK
6. Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center and Sackler School of Medicine; Tel Aviv University; Tel Aviv Israel
7. Fetal Medicine, Barcelona Center for Maternal Fetal and Neonatal Medicine, Hospital Clínic and Sant Joan de Déu; University of Barcelona; Barcelona Spain
8. Fetal Heart Program; Children's Hospital of Philadelphia; PA USA
9. The Fetal Center; University of Texas Health Science Center at Houston; Houston TX USA