Cooper, H. L. F., Brady, J. E., Friedman, S. R., Tempalski, B., Gostnell, K., & Flom, P. L. (2008). Estimating the Prevalence of Injection Drug Use among Black and White Adults in Large U.S. Metropolitan Areas over Time (1992–2002): Estimation Methods and Prevalence Trends. Springer US.

Cooper, Hannah L. F., Joanne E. Brady, Samuel R. Friedman, Barbara Tempalski, Karla Gostnell, and Peter L. Flom. Estimating the Prevalence of Injection Drug Use Among Black and White Adults in Large U.S. Metropolitan Areas Over Time (1992–2002): Estimation Methods and Prevalence Trends. Springer US, 2008.

Cooper, Hannah L. F., et al. Estimating the Prevalence of Injection Drug Use Among Black and White Adults in Large U.S. Metropolitan Areas Over Time (1992–2002): Estimation Methods and Prevalence Trends. Springer US, 2008.