Cooper, H., Friedman, S.R., Tempalski, B., Friedman, R., Keem, M. "Racial/Ethnic Disparities in Injection Drug Use in 94 U.S. Metropolitan Statistical Areas in 1998." Annals of Epidemiolog, 2005, 15 (5): 326-224.

Cooper, H., Moore, L., Gruskin, S., Krieger, N. "The Impact of a Police Drug Crackdown on Drug Injectors' Ability to Practice Harm Reduction: A Qualitative Study." Social Science and Medicine, 2005, 61(3): 673-684.

Cooper, H., Wypij, D., Krieger, N. "Police Drug Crackdowns and Hospitalization Rates For Illicit-Injection-Related Infections in New York City." International Journal of Drug Policy, 2005, 16:150-160.

Cooper, H . "Medical Theories of Opiate Addiction's Etiology and Their Relationship to Addicts' Perceived Social Position in the United States: An Historical Analysis." International Journal of Drug Policy, 2004, 15: 435-445 (special issue on social theory and harm reduction).

Friedman, S.R., Lieb, S., Tempalski, B., Cooper, H., Keem, M., Friedman, R., Flom, P. "HIV Among Injection Drug Users in Large US Metropolitan Areas in 1998." Journal of Urban Health, in press.

Friedman, S.R., Tempalski, S., Perlis, S., Keem, M., Friedman, R., Flom, P., Cooper, H. "Estimating numbers of IDUs in metropolitan areas for structural analyses of community vulnerability and for assessing relative degrees of service provision for IDUs." Journal of Urban Health, 2004, 81(3): 377 - 400.

Uldall, K.K., Palmer, N.B., Whetten, K., Mellins, C. "Adherence in people living with HIV/AIDS, mental illness and chemical dependency-A review of the literature." AIDS CARE, 2004, 16 (sup 1): S71-S96.