Employment-based abstinence reinforcement promotes opiate and cocaine abstinence in out-of-treatment injection drug users

Holtyn AF, Koffarnus MN, DeFulio A, Sigurdsson SO, Strain EC, Schwartz RP, Silverman K (2014). Employment-based abstinence reinforcement promotes opiate and cocaine abstinence in out-of-treatment injection drug users. Journal of Applied Behavior Analysis. 47(4):681-93. doi: 10.1002/jaba.158. Epub 2014 Oct 8. PMID: 25292399.