1. New York Medical College and Westchester Medical Center Health, Valhalla, NY
2. Loyola University Medical Center
3. The University of Texas MD Anderson Cancer Center, Houston, TX
4. Hospital of the University of Pennsylvania, Philadelphia, PA
5. University of Washington and Fred Hutchinson Cancer, Seattle, WA
6. Florida Atlantic University, Florida International University, Boca Raton, FL
7. Department of Radiation Oncology, Stritch School of Medicine, Cardinal Bernardin Cancer Center, Loyola University Chicago, Maywood, IL
8. South Florida Proton Therapy Institute, Delray Beach, FL and Rakuten Medical, Inc. San Diego, CA