1 Shing M. Lee, PhD, Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY; Nolan A. Wages, PhD, Division of Translational Research and Applied Statistics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA; Karyn A. Goodman, MD, Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY; and A. Craig Lockhart, MD, MHS, Division of Medical Oncology, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL.