1. Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT 06520, USA.
2. Yale Cancer Center, Yale School of Medicine, New Haven, CT 06520, USA.
3. Veterans Affairs Greater Los Angeles Healthcare System, Sepulveda, CA 91343, USA.
4. Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, New Haven, CT 06520, USA.
5. Division of Radiation Biology, Beckman Research Institute, Duarte, CA 91010, USA.
6. David Geffen School of Medicine, Jonsson Comprehensive Cancer Center, and Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
7. Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, VT 05405, USA.
8. Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA.
9. Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520, USA.
10. Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.