1 Department of Radiation Oncology, University of Rochester, Rochester, New York.
2 Department of Radiation Oncology, Stanford University Medical Center, Stanford, California.
3 Department of Radiation Oncology and Lineberger Cancer Center, University of North Carolina, Chapel Hill, North Carolina.
4 Department of Radiation Oncology, Bon Secours Mercy Health System, Youngstown, Ohio.
5 Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York.
6 Department of Radiation Oncology, Geisinger Cancer Institute, Danville, Pennsylvania.
7 Department of Radiation Oncology, Beacon Hospital, University College of Dublin, Ireland.
8 Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.
9 Department of Radiation Oncology, NYU Langone Medical Center, New York, New York.
10 Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado.
11 Department of Radiation Oncology & Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland. Electronic address: kjanson3@jhmi.edu.