1. Department of Radiation Oncology Memorial Sloan Kettering Cancer Center New York New York USA
2. Department of Radiation Oncology Rogel Comprehensive Cancer Center, Michigan Medicine Ann Arbor Michigan USA
3. Meharry‐Vanderbilt Alliance, Department of Radiation Oncology Vanderbilt University Medical Center Nashville Tennessee USA
4. Department of Radiation Oncology Brigham and Women's Hospital/Dana‐Farber Cancer Institute Boston Massachusetts USA
5. Department of Health Policy and Management Harvard School of Public Health Boston Massachusetts USA