1. Division of Preventive and Behavioral Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
2. Teen Tobacco Addiction Treatment Research Center, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland
3. Family and Community Medicine, Public Health, University of Arizona, Arizona Health Sciences Center, Tucson, Arizona
4. MGH Center for Child and Adolescent Health Policy, General Pediatrics Division, MassGeneral Hospital for Children and Tobacco Research and Treatment Center, Boston, Massachusetts
5. Health Research and Policy Centers, University of Illinois at Chicago, Chicago, Illinois
6. Division of Epidemiology, University of Minnesota, Minneapolis, Minnesota
7. Department of Community and Preventive Medicine and James P. Wilmot Cancer Center, University of Rochester, Rochester, New York
8. M.D. Anderson Cancer Center, University of Texas, Houston, Texas
9. Family and Community Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
10. Department of Community and Preventive Medicine, University of Rochester, Rochester, New York