1. Department of Congenital Cardiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
2. Department of Obstetrics, Queen Charlotte’s and Chelsea Hospital, London, UK
3. St Michael’s Hospital, Bristol, Bristol
4. Department of Obstetrics, St George’s Hospital, London, UK
5. Cardiology, NHS Greater Glasgow and Clyde, Glasgow, UK
6. Department of Cardiology, University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK
7. Department of Anaesthesia, Leicester Royal Infirmary, Leicester, UK
8. Fertility Network UK, Greenwich, UK
9. Newcastle Fertility Centre at Life, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
10. Department of Anaesthesia, Nottingham University Hospitals NHS Trust, Nottingham, UK
11. Department of Clinical Genetics, Guys and St Thomas’ NHS Foundation Trust, London, UK
12. Department of Primary Care, NHS Gloucestershire Clinical Commissioning Group, Brockworth, UK
13. Department of Obstetrics, University College London, London, UK
14. Reproductive Medicine, St Bartholomew’s Hospital, London, UK