Bull, S., Rietmeijer C., Piper P. . Synergistic Risk for HIV: The Complexity of Behavior among Men Who Have Sex with Men and also Inject Drugs (MSM-IDU). Journal of Homosexuality. 1999.
1999
https://researcherprofiles.org/profile/408495858
Bull, S., Rietmeijer C., Piper P.
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