1. Division of Population Sciences, Dana-Farber/Partners CancerCare, Boston, Massachusetts
2. Division of Gastrointestinal Oncology, Dana-Farber/Partners CancerCare, Boston, Massachusetts
3. Susan F. Smith Center for Women’s Cancers, Dana-Farber/Partners CancerCare, Boston, Massachusetts
4. Division of Medical Oncology, University of North Carolina Lineberger Cancer Center, Chapel Hill
5. Division of Hematology and Oncology, Department of Medicine, University of California, San Francisco
6. Division of Medical Oncology, Virginia Commonwealth University, Richmond
7. Division of Medical Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts
8. Department of Nursing, Dana-Farber/Partners CancerCare, Boston, Massachusetts