1. From the Department of Radiation Oncology, University of North Carolina, Chapel Hill; Cancer and Leukemia Group B Statistical Center, Duke University, Durham, NC; Department of Surgery, Saint Joseph Cancer Institute, Towson, MD; Department of Surgery, Medical University of South Carolina, Charleston, SC; North Central Cancer Treatment Group, Rochester, MN; Department of Medicine, Northwestern University, Chicago, IL; Department of Surgery, Brigham and Women's Hospital; and Department of Medicine, Dana...