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Auteur N. R. RIGGS |
Documents disponibles écrits par cet auteur (2)

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Article : Périodique
A. M. LEVENTHAL ; D. R. STRONG ; M. G. KIRKPATRICK ; J. B. UNGER ; S. SUSSMAN ; N. R. RIGGS ; M. D. STONE ; R. KHODDAM ; J. M. SAMET ; J. AUDRAIN-MCGOVERN |Importance: Exposure to nicotine in electronic cigarettes (e-cigarettes) is becoming increasingly common among adolescents who report never having smoked combustible tobacco. Objective: To evaluate whether e-cigarette use among 14-year-old adol[...]![]()
Article : Périodique
Background: Marijuana use is common among U.S. college students. Liberalization of marijuana use policies is hypothesized to decrease social norms discouraging use, which protects against marijuana use. This may increase the importance of protec[...]