1 From the Division of Health Services, Outcomes, and Policy, Department of Radiation Oncology, Emory University School of Medicine, and the Department of Health Policy and Management, Emory Rollins School of Public Health - both in Atlanta (P.M.G.S.); the Center for Bioethics and Humanities, SUNY Upstate Medical Center, Syracuse, NY (R.E.F.); and the Department of Internal Medicine, University of Colorado-Anschutz Medical Center, Aurora (L.C.).