1. Duke Cancer Institute Duke University Medical Center Durham North Carolina
2. Department of Community and Family Medicine Duke School of Medicine Durham North Carolina
3. Duke Clinical and Translational Science Institute Duke University School of Medicine Durham North Carolina
4. Department of Cancer Prevention and Control Roswell Park Comprehensive Cancer Center Buffalo New York
5. ICF Rockville Maryland
6. Department of Biostatistics and Bioinformatics Duke University Durham North Carolina
7. Center for Vulnerable Populations, Division of General Internal Medicine, Department of Medicine University of California at San Francisco San Francisco California
8. Division of General Internal Medicine, Department of Medicine University of California at San Francisco San Francisco California
9. Helen Diller Family Comprehensive Cancer Center University of California at San Francisco San Francisco California
10. Department of Epidemiology and Biostatistics, School of Medicine University of California at San Francisco San Francisco California
11. Division of Medical Oncology, Department of Medicine Duke University Medical Center Durham North Carolina