Blazer, D. G., & Wu, L. (2009). The epidemiology of substance use and disorders among middle aged and elderly community adults: National Survey on Drug Use and Health. American journal of geriatric psychiatry, 17(3), 237-245. doi:10.1097/JGP.0b013e318190b8ef
Cita Chicago Style (17a ed.)Blazer, Dan G., y Li-Tzy Wu. "The Epidemiology of Substance Use and Disorders Among Middle Aged and Elderly Community Adults: National Survey on Drug Use and Health." American Journal of Geriatric Psychiatry 17, no. 3 (2009): 237-245. https://doi.org/10.1097/JGP.0b013e318190b8ef.
Cita MLA (9a ed.)Blazer, Dan G., y Li-Tzy Wu. "The Epidemiology of Substance Use and Disorders Among Middle Aged and Elderly Community Adults: National Survey on Drug Use and Health." American Journal of Geriatric Psychiatry, vol. 17, no. 3, 2009, pp. 237-245, https://doi.org/10.1097/JGP.0b013e318190b8ef.