Cita APA

El-Toukhy, S., & Choi, K. (2016). A Risk-Continuum Categorization of Product Use Among US Youth Tobacco Users. Nicotine Tob Res.

Chicago Style Citation

El-Toukhy, Sherine, i Kelvin Choi. "A Risk-Continuum Categorization of Product Use Among US Youth Tobacco Users." Nicotine Tob Res 2016.

Cita MLA

El-Toukhy, Sherine, i Kelvin Choi. "A Risk-Continuum Categorization of Product Use Among US Youth Tobacco Users." Nicotine Tob Res 2016.