1. Department of Oncology, Georgetown University Medical Center and Cancer Prevention and Control Program, Georgetown-Lombardi Comprehensive Cancer Center, Washington, DC
2. Department of Biostatistics, University of Texas M.D. Anderson Cancer Center, Houston, TX
3. Departments of Family and Social Medicine and Epidemiology and Population Health and Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY
4. Department of Radiation Oncology, University of Michigan, Ann Arbor, MI
5. Department of Radiation Oncology, The James, The Ohio State University Comprehensive Cancer Center, Columbus, OH
6. Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University Medical Center, Washington, DC
7. Canadian Cancer Trials Group, Queen’s University, Kingston, ON, Canada
8. Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD
9. Department of Radiation Oncology, Indiana University, Indianapolis, IN
10. Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA
11. NRG Oncology, and the Division of Breast Surgical Oncology, Allegheny General Hospital, Allegheny Health Network, Pittsburgh, PA
12. McMaster University and Hamilton Heath Sciences, Hamilton, ON, Canada
13. Department of Surgery, Duke Cancer Institute, Duke University Medical School, Chapel Hill, NC
14. Novant Health Oncology Specialists, Winston-Salem, NC
15. NRG Oncology, and the Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA
16. Cancer Clinical Research Unit, University of Toronto Princess Margaret Cancer Centre, Toronto, ON, Canada
17. Department of Biostatistics at Harvard University and Department of Biostatistics and Computational Biology at the Dana-Farber Cancer Institute, Boston, MA
18. Institute for Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany