1. From the Departments of Internal Medicine, Health Management and Policy, and Health Behavior and Health Education, University of Michigan, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor; Department of Family Medicine and Karmanos Cancer Institute, Wayne State University, Detroit, MI; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA; and Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, PA