1. Edwin L. Steele Laboratory, Department of Radiation Oncology, Massachusetts General Hospital (MGH) and Harvard Medical School (HMS), Boston, MA 02114, USA.
2. Oncology Translational Medicine, Novartis Institute for Biomedical Research, Cambridge, MA 02139, USA.
3. Department of Medicine, MGH Cancer Center and HMS, Boston, MA 02129, USA.
4. Department of Pathology, MGH and HMS, Boston, MA 02114, USA.
5. Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27514, USA.
6. Department of Genetics, University of North Carolina, Chapel Hill, NC 27514, USA.
7. Division of Hematology Oncology, Department of Medicine, Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27514, USA.
8. Department of Pathology, Microbiology, and Immunology, Vanderbilt-Ingram Cancer Center, Nashville, TN 37203, USA.
9. Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Nashville, TN 37203, USA.
10. Departments of Medicine and Cancer Biology, Vanderbilt-Ingram Cancer Center, Nashville, TN 37203, USA.