1. a Institute of Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
2. b Department of Radiology, Molecular Imaging Program, Stanford University School of Medicine, Stanford, California, USA
3. c Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA
4. d Department of Medicine, Division of Cardiology, Stanford University School of Medicine, Stanford, California, USA
5. e Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California, USA
6. f Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
7. g Department of Physics and Astronomy, University of Victoria, Houston, Victoria, British Columbia, Canada
8. h Department of Radiation Oncology, University of Utah, Salt Lake City, Utah, USA
9. i Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
10. j Stanford Ludwig Center for Cancer Stem Cell Research and Medicine