1. Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, New York
2. Westat, Rockville, Maryland
3. Tobacco and Volatiles Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, Georgia
4. Office of Science, Center for Tobacco Products, Food and Drug Administration, Silver Spring, Maryland
5. National Institute of Drug Abuse, Bethesda, Maryland
6. Masonic Cancer Center, University of Minnesota, Minneapolis
7. The Schroeder Institute for Tobacco Research and Policy Studies, Truth Initiative, Washington, DC