1. Cairo Cure Oncology Center, Cairo, Egypt
2. Breast Cancer Center, Hospital Zambrano Hellion, School of Medicine, Tecnologico de Monterrey, San Pedro Garza Garcia, Mexico
3. International Breast Cancer Study Group Statistical Center, Boston, MA
4. Department of Data Science, Division of Biostatistics, Dana-Farber Cancer Institute, Boston, MA
5. Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
6. Harvard Medical School, Boston, MA
7. Research Laboratory on Human Reproduction, Université Libre de Bruxelles (ULB), Brussels, Belgium
8. Gynecology and Obstetrics Department, Fertility Clinic, HUB-Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
9. Program for Young Patients, International Breast Cancer Study Group, A Division of ETOP IBCSG Partners Foundation, Bern, Switzerland
10. Division of Medical Senology, IEO, European Institute of Oncology, IRCCS, Milan, Italy
11. Vall d’Hebron University Hospital, Vall d’Hebron Institute of Oncology, Barcelona, Spain
12. SOLTI Breast Cancer Research Group, Barcelona, Spain
13. Department of Breast and Medical Oncology, National Center for Global Health and Medicine, Tokyo, Japan
14. Breast Cancer Unit, Department of Oncology, Division of Cancer Medicine, Oslo University Hospital, Oslo, Norway
15. Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
16. Dutch Breast Cancer Research Group (BOOG), Amsterdam, the Netherlands
17. Breast Cancer Unit, Department of Medical Oncology, Centre Oscar Lambret, Lille, France
18. Odette Cancer Center, Sunnybrook Health Sciences Center, Toronto, ON, Canada
19. Canadian Clinical Trials Group (CCTG), Toronto, ON, Canada
20. Division of Medical Oncology, Department of Medicine, University of Colorado Cancer Center, Aurora, CO
21. Department of Oncology, KU Leuven and Leuven Cancer Institute, Leuven, Belgium
22. Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium
23. Antoni van Leeuwenhoek-Netherlands Gynecologic Oncology Cancer Institute, Amsterdam, the Netherlands
24. Institut Jules Bordet and Université Libre de Bruxelles, Brussels, Belgium
25. Breast Oncology Cancer, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
26. Department of Surgery, Leon Berard Cancer Centre, Centre Léon Bérard, Lyon, France
27. Division of Medical Oncology, Institute of Oncology, Ljubljana, Slovenia
28. St Luke's International Hospital, Breast Center, Tokyo, Japan
29. Breast Division, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
30. Department of Clinical Research and Evaluation, SAIHST, Sungkyunkwan University, Seoul, South Korea
31. Cancer Trials Ireland, Dublin, Ireland
32. Department of Medical Oncology, St Vincent's University Hospital, Dublin, Ireland
33. Tallaght University Hospital, Dublin, Ireland
34. GEICAM Spanish Breast Cancer Group, Madrid, Spain
35. Hospital Virgen del Rocio Sevilla, Sevilla, Spain
36. Breast Oncology Program, Cleveland Clinic Taussig Cancer Institute, Cleveland, OH
37. Department of Surgery, University of Melbourne, Melbourne, VIC, Australia
38. Royal Melbourne Hospital, Melbourne, VIC, Australia
39. Breast Unit, Helios University Hospital Wuppertal, University Witten/Herdecke, Wuppertal, Germany
40. Medical University Graz, Department Gynaecology, Graz, Austria
41. Austrian Breast and Colorectal Study Group (ABCSG), Vienna, Austria
42. Department of Medical Oncology, Institute for Oncology and Radiology of Serbia, Belgrade, Serbia
43. Breast Unit, Champalimaud Clinical Center/Champalimaud Foundation, Lisbon, Portugal
44. New York University Langone's Perlmutter Cancer Center, Breast Cancer Center, New York, NY
45. Europa Donna, Ljubljana, Slovenia
46. Department of Oncology, Mayo Clinic, Rochester, MN
47. Breast and Melanoma Therapeutics, Cancer Therapy Evaluation Program, National Cancer Institute, Bethesda, MD
48. International Breast Cancer Study Group, Division of ETOP IBCSG Partners Foundation, Bern, Switzerland
49. IEO, European Institute of Oncology, IRCCS, Milan, Italy
50. Frontier Science Foundation, Boston, MA
51. Harvard TH Chan School of Public Health, Boston, MA
52. Geneva University Hospitals, Geneva, Switzerland
53. Lugano University, Lugano, Switzerland
54. Swiss Group for Clinical Cancer Research (SAKK), Bern, Switzerland
55. Fertility and Procreation Unit, Gynecologic Oncology Program, IEO, European Institute of Oncology IRCCS, Milan, Italy