Nelson, K. E., Galai, N., Safaeian, M., Strathdee, S. A., Celentano, D. D., & Vlahov, D. (2002). Temporal Trends in the Incidence of Human Immunodeficiency Virus Infection and Risk Behavior among Injection Drug Users in Baltimore, Maryland, 1988-1998.
Lua i Stíl Chicago (17ú heag.)Nelson, Kenrad E., Noya Galai, Mahboobeh Safaeian, Steffanie A. Strathdee, David D. Celentano, agus David Vlahov. Temporal Trends in the Incidence of Human Immunodeficiency Virus Infection and Risk Behavior Among Injection Drug Users in Baltimore, Maryland, 1988-1998. 2002.
Lua MLA (9ú heag.)Nelson, Kenrad E., et al. Temporal Trends in the Incidence of Human Immunodeficiency Virus Infection and Risk Behavior Among Injection Drug Users in Baltimore, Maryland, 1988-1998. 2002.
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