1. Academic Department of Obstetrics and Gynaecology Chelsea and Westminster Hospital London UK
2. Adult Congenital Heart Disease Service University Hospitals Bristol NHS Foundation Trust Bristol UK
3. Department of Obstetrics University Hospitals Bristol NHS Foundation Trust Bristol UK
4. Women's Centre Oxford University Hospitals NHS Foundation Trust Oxford UK
5. NIHR Oxford Biomedical Research Centre Oxford University Hospitals NHS Foundation Trust Oxford UK
6. Department of Adult Congenital Heart Disease Leeds Teaching Hospitals NHS Trust Leeds UK
7. Department of Human Development and Health Princess Anne Hospital University of Southampton Southampton UK
8. Department of Adult Congenital Heart Disease Glenfield Hospital Leicester UK
9. Department of Obstetrics Royal Leicester Infirmary Leicester UK
10. Scottish Adult Congenital Cardiac Service Golden Jubilee National Hospital Glasgow UK
11. Department of Obstetrics University College Hospital London UK
12. Department of Adult Congenital Heart Disease Bart's Heart Centre London UK