1. Cost-Effectiveness of Needle and Syringe Exchange for the Prevention of HIV in New York City Belani, Hrishikesh K.; Muennig, Peter A. 2008 Articles HIV infections--TransmissionNeedle sharingMedical care--Cost effectivenessHIV (Viruses)--TransmissionHIV (Viruses)--Transmission--PreventionPublic healthEpidemiology