Brady, J. E., Friedman, S. R., Cooper, H. L., Flom, P. L., Tempalski, B., & Gostnell, K. (2008). Estimating the Prevalence of Injection Drug Users in the U.S. and in Large U.S. Metropolitan Areas from 1992 to 2002. Springer US.

Brady, Joanne E., Samuel R. Friedman, Hannah L.F Cooper, Peter L. Flom, Barbara Tempalski, and Karla Gostnell. Estimating the Prevalence of Injection Drug Users in the U.S. and in Large U.S. Metropolitan Areas From 1992 to 2002. Springer US, 2008.

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. Springer US, 2008.