1. Section of Investigative Medicine, Hammersmith Hospital Imperial College London London UK
2. Department of Endocrinology, Diabetes & Metabolism Newcastle‐upon‐Tyne Hospitals NHS Foundation Trust Newcastle‐upon‐Tyne UK
3. Translational & Clinical Research Institute University of Newcastle‐upon‐Tyne Newcastle‐upon‐Tyne UK
4. Community Gynaecology (NHS) Principal Medical Limited Bicester Oxfordshire UK
5. Oxford Menopause Ltd, Ardington Wantage UK
6. Division of Diabetes, Endocrinology & Metabolism Imperial College London London UK
7. Department of Endocrinology Imperial College Healthcare NHS Trust London UK
8. Reproductive Medicine Unit University College London Hospitals London UK
9. Department of Endocrinology Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust Brighton UK
10. Kallman Syndrome and Congenital Hypogonadotropic Hypogonadism Support Group Dallas Texas United States
11. Department of Endocrinology St George's Hospital Medical School London UK
12. UK Turner Syndrome Support Society Clydebank UK
13. Department of Endocrinology Oxford University Hospitals NHS Foundation Trust Oxford UK
14. Department of Obstetrics & Gynaecology Singapore General Hospital Singapore
15. MRC Centre for Reproductive Health University of Edinburgh Edinburgh UK