1. Department of Community Health and Prevention Research Center, School of Public Health, St. Louis University, St. Louis, Missouri 63108-3342;
2. Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 30341-3724;
3. Center for Health Promotion and Disease Prevention, Henry Ford Health System, Detroit, Michigan 48202-3450;
4. Department of Health Management and Policy, School of Public Health, University of Michigan, Ann Arbor, Michigan 48109-2029