Published on in Vol 3 , No 2 (2014) :Apr-Jun
1 Department of Research and Evaluation, Legacy, Washington, DC, US
2 Survos, Washington, DC, US
3 Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, US
4 Steven A Schroeder Institute for Tobacco Research and Policy Studies, Legacy, Washington, DC, US
5 Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, US