1. Department of Radiation Oncology, University of Michigan, Ann Arbor
2. Department of Internal Medicine, University of Michigan, Ann Arbor3Department of Health Management and Policy, University of Michigan, Ann Arbor4Ann Arbor Veterans Affairs Health Care System, Ann Arbor
3. University of Michigan Center for Cancer Biostatistics, Ann Arbor
4. Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor
5. Stanford University School of Medicine, Stanford, California
6. Emory University, Atlanta, Georgia
7. Keck School of Medicine, University of Southern California, Los Angeles
8. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
9. Department of Internal Medicine, University of Michigan, Ann Arbor3Department of Health Management and Policy, University of Michigan, Ann Arbor