1. Brompton Centre for Fetal Cardiology; Royal Brompton Hospital; London UK
2. Fetal Medicine Unit; St George's University of London & St George's University Hospitals NHS Foundation Trust, Molecular and Clinical Sciences Research Institute; London UK
3. University Hospital and Masaryk University Brno; Brno Czech Republic
4. Institute of Cardiovascular and Cell Sciences; St George's University of London; London UK