1. Department of Biomedical Sciences, University of Edinburgh , Edinburgh, UK
2. Centre of Reproductive Medicine and Andrology, University of Münster , Münster, Germany
3. Laboratory of Reproductive Biology, University Hospital of Copenhagen & Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen, Denmark
4. Department of Reproductive Biology CECOS, AP-HP Centre—University of Paris Cité, Cochin Hospital , Paris, France
5. AYA Unit, Fertility Preservation Consultation, Haematology Department, AP-HP Nord, University of Paris Cité, Saint-Louis Hospital , Paris, France
6. Department of Genetics, Reproduction and Development (GRAD), Biology of the Testis (BITE), Vrije Universiteit Brussel (VUB) , Brussels, Belgium
7. Cell Therapy, Stem Cells and Tissues Group, Basque Center for Blood Transfusion and Human Tissues , Bizkaia, Spain
8. Biocruces Bizkaia Health Research Institute , Bizkaia, Spain
9. NorDIC, Team “Adrenal and Gonadal Pathophysiology”, Biology of Reproduction-CECOS Laboratory, Rouen University Hospital, Université de Rouen Normandie , Rouen, France
10. Division of Oncology, Children's Hospital of Philadelphia, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
11. Reproductive Services/Melbourne IVF, The Royal Women’s Hospital , Parkville, VIC, Australia
12. Department of Obstetrics and Gynaecology, Royal Women’s Hospital, University of Melbourne , Parkville, VIC, Australia
13. Childhood Cancer Research Unit, Department of Women’s and Children’s Health, NORDFERTIL Research Lab Stockholm, Karolinska Institutet and Karolinska University Hospital , Solna, Sweden
14. Division of Haematology-Oncology and Stem Cell Transplantation, New Children’s Hospital, Pediatric Research Center, Department of Pediatrics, University of Helsinki and Helsinki University Hospital , Helsinki, Finland
15. Oncofertility Program, Royal Children’s Hospital , Melbourne, VIC, Australia
16. Division of Gynecology and Reproduction, Department of Reproductive Medicine, Karolinska University Hospital , Stockholm, Sweden
17. Division of Urology, Department of Clinical Science, Intervention and Technology—CLINTEC, Karolinska Institutet , Stockholm, Sweden
18. Department of Paediatric Oncology and Haematology, Children’s Hospital Oxford, Oxford University Hospitals NHS Foundation Trust , Oxford, UK
19. Reproductive Biology Laboratory, Center for Reproductive Medicine, Amsterdam UMC Location University of Amsterdam , Amsterdam, the Netherlands
20. Amsterdam Reproduction and Development Research Institute , Amsterdam, the Netherlands
21. Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh School of Medicine , Pittsburgh, PA, USA
22. Fertility Preservation Consultation, Haematology Department, AYA Unit, Saint Louis Hospital, AP-HP Médecine Sorbonne Université , Paris, France
23. Department of Reproductive Biology, Cochin Hospital , Paris, France
24. MRC Centre for Reproductive Health, Institute of Regeneration and Repair, University of Edinburgh , Edinburgh, UK
25. Department of Urology, Wake Forest University School of Medicine , Winston-Salem, NC, USA
26. Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine , Winston-Salem, NC, USA
27. Sackler Faculty of Medicine, Department of Obstetrics and Gynecology, Chaim Sheba Medical Center (Tel Hashomer), Tel Aviv University , Tel Aviv, Israel
28. Princess Maxima Center for Pediatric Oncology , Utrecht, the Netherlands
29. Department of Gynecology and Andrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain , Brussels, Belgium
30. Royal Hospital for Children and Young People , Edinburgh, UK