Ghitza, Udi E Contingency management reduces injection-related HIV risk behaviors in heroin and cocaine using outpatients. [electronic resource] - Addictive behaviors Apr 2008 - 593-604 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Intramural ISSN: 0306-4603 Standard No.: 10.1016/j.addbeh.2007.11.009 doi Subjects--Topical Terms: AdolescentAdultAgedCocaine-Related Disorders--rehabilitationCounselingFemaleHIV Infections--prevention & controlHeroin Dependence--rehabilitationHumansMaleMethadone--therapeutic useMiddle AgedNarcotics--therapeutic useRewardRisk FactorsSubstance Abuse Treatment CentersSubstance Abuse, Intravenous--rehabilitation