1. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
2. Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
3. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
4. Division of Geriatrics, Department of Medicine, University of California, San Francisco, San Francisco
5. Division of Geriatrics, Veterans Affairs Health Care System, San Francisco, California
6. Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, California
7. Department of General Medical Oncology and Multidisciplinary Breast Center, University Hospitals Leuven, KU Leuven, Leuven, Belgium
8. Division of Medical Oncology, Washington University School of Medicine, St Louis, Missouri
9. Memorial Sloan Kettering Cancer Center, Commack, New York
10. James P. Wilmot Cancer Institute, Division of Hematology/Oncology, Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, New York
11. Department of Medical Oncology, Institut Curie, Saint-Cloud, France
12. Department of Medicine, Rush University Medical College and Cook County Health, Chicago, Illinois
13. Department of Breast Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston
14. Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill
15. School of Nursing, University of North Carolina at Chapel Hill, Chapel Hill
16. Department of Oncology, Mayo Clinic, Rochester, Minnesota
17. Center for Bioethics and Social Sciences in Medicine, University of Michigan, Ann Arbor
18. Department of Radiation Oncology, University of Michigan, Ann Arbor
19. Cancer and Aging Research Group
20. Dana-Farber Cancer Institute, Boston, Massachusetts
21. Alliance for Clinical Trials in Oncology, Boston, Massachusetts
22. Survey and Data Management Core, Dana-Farber Cancer Institute, Boston, Massachusetts
23. Division of General Medicine, Department of Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts
24. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts
25. Division of General Internal Medicine, Brigham and Women's Hospital, Boston, Massachusetts