Contingency Management Reduces Symptoms of Psychological and Emotional Distress among Homeless, Substance-dependent Men Who Have Sex with Men

Fletcher JB, Shoptaw S, Peck JA, Reback CJ (2014). Contingency Management Reduces Symptoms of Psychological and Emotional Distress among Homeless, Substance-dependent Men Who Have Sex with Men. Mental Health and Substance Use. 7(4):420-430.PMID:25364379.