1. University of California, Los Angeles, Los Angeles, CA, United States
2. David Geffen School of Medicine at University of California Los Angeles (UCLA), Los Angeles, CA, United States
3. David Geffen School of Medicine at UCLA, LOS ANGELES, CA, United States
4. David Geffen School of Medicine at UCLA, los angeles, California, United States
5. David Geffen School of Medicine at UCLA, United States
6. Keck Hospital of USC, Los Angeles, United States
7. David Geffen School of Medicine at UCLA, Los Angeles, United States
8. Boston University School of Medicine, United States
9. University of California, Los Angeles, United States
10. Boston University School of Medicine, Boston, MA, United States
11. Boston University, Boston, MA, United States
12. The University of Texas MD Anderson Cancer Center, Houston, TX, United States