By Perkins Kenneth A.   Karelitz Joshua L.   Jao Nancy C.   Stratton Erin   in Nicotine & Tobacco Research

ISSN:1469-994X|15|6|1141-1145

Oxford University Press‎(2013)‎

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By Berg Carla J.   Stratton Erin   Sokol Michael   Santamaria Andrew   Bryant Lawrence   Rodriguez Rolando   in American Journal of Health Behavior

ISSN:1945-7359|38|5|668-680

PNG Publications‎(2014)‎

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