1. Department of Women’s Health Guy’s and St Thomas’ NHS Foundation TrustLondonUnited Kingdom of Great Britain and Northern Ireland
2. Department of Women’s Health King’s College LondonLondonUnited Kingdom of Great Britain and Northern Ireland
3. Department of Haematology Oxford University Hospitals NHS Foundation Trust OxfordUnited Kingdom of Great Britain and Northern Ireland
4. Department of Obstetrics and Gynaecology Barking, Havering and Redbridge University Hospitals RomfordUnited Kingdom of Great Britain and Northern Ireland
5. London School of Hygiene and Tropical Medicine LondonUnited Kingdom of Great Britain and Northern Ireland
6. Centre for Fertility and Health Norwegian Institute of Public Health Oslo Norway
7. Department of Haematology Sandwell and West, Birmingham Hospitals NHS Trust London United Kingdom of Great Britain and Northern Ireland
8. Department of Haematology Guy’s and St Thomas’ NHS Foundation TrustLondon United Kingdom of Great Britain and Northern Ireland
9. Department of Haematology King’s College LondonLondon United Kingdom of Great Britain and Northern Ireland