1 Department of Radiation Oncology, Weill-Cornell Medical College, Stich Radiation Oncology Center, New York-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York.
2 Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland.
3 Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts.
4 Department of Radiation and Cellular Oncology, University of Chicago Pritzker School of Medicine, Chicago, Illinois.
5 Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts.
6 Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas.
7 Department of Therapeutic Radiology, Yale School of Medicine, New Haven, Connecticut.
8 Department of Radiation Oncology, University of California-San Francisco, San Francisco, California.
9 Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
10 Department of Radiation Medicine, Knight Cancer Institute Oregon Health and Science University, Portland, Oregon.
11 Department of Radiation Oncology, University of Cincinnati, Cincinnati, Ohio.
12 Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin.
13 Department of Radiation Oncology, New York University Perlmutter Cancer Center, New York, New York.
14 Department of Radiation and Cellular Oncology, University of Chicago Pritzker School of Medicine, Chicago, Illinois. Electronic address: dgolden@radonc.uchicago.edu.