1. Seth A. Rosenthal, MD, Sutter Medical Group and Sutter Cancer Centers, Sacramento, CA; Chen Hu, PhD, NRG Oncology Statistics and Data Management Center, Philadelphia, PA, and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD; Oliver Sartor, MD, Tulane University Health Services Center, New Orleans, LA; Felix Y. Feng, MD, University of California at San Francisco, San Francisco, CA; and Howard M. Sandler, MD, MS, Cedars-Sinai Medical Center, Los Angeles, CA