1. Department of Cell Biology, Harvard Medical School, Boston, United States
2. Division of Genomic Stability and DNA Repair, Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, United States
3. Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, United States
4. Gastroenterology Division, Brigham and Women's Hospital, Harvard Medical School, Boston, United States
5. Genetics Division, Brigham and Women's Hospital, Boston, United States
6. Dana-Farber Cancer Institute, Boston, United States
7. Harvard Stem Cell Institute, Cambridge, United States
8. Broad Institute of MIT and Harvard, Cambridge, United States