Brady, J. E., Flom, P. L., Cooper, H. L., & Friedman, S. R. (2008). Estimating the prevalence of injection drug users in the U.S. and in large U.S. metropolitan areas from 1992 to 2002. Journal of urban health, 85(3), 323-351. doi:10.1007/s11524-007-9248-5
Cita Chicago Style (17a ed.)Brady, Joanne E., Peter L. Flom, Hannah L.F Cooper, y Samuel R. Friedman. "Estimating the Prevalence of Injection Drug Users in the U.S. and in Large U.S. Metropolitan Areas from 1992 to 2002." Journal of Urban Health 85, no. 3 (2008): 323-351. https://doi.org/10.1007/s11524-007-9248-5.
Cita MLA (9a ed.)Brady, Joanne E., et al. "Estimating the Prevalence of Injection Drug Users in the U.S. and in Large U.S. Metropolitan Areas from 1992 to 2002." Journal of Urban Health, vol. 85, no. 3, 2008, pp. 323-351, https://doi.org/10.1007/s11524-007-9248-5.