1. Fetal Medicine Unit St George's University Hospitals NHS Foundation Trust, University of London London UK
2. Vascular Biology Research Centre Molecular and Clinical Sciences Research Institute, St George's University of London London UK
3. Department of Obstetrics and Gynaecology Spirito Santo Tertiary Level Hospital of Pescara Pescara Italy
4. Department of Cardiology St George's University Hospitals NHS Foundation Trust London UK
5. School of Psychology and Life Sciences Canterbury Christ Church University Canterbury UK