A retrospective comparison of two state-funded smartphone-based contingency management programs with different incentives.

Cardoso Sao Mateus, C., Fletcher, J., Rash, C., & DeFulio, A. (2026). A retrospective comparison of two state-funded smartphone-based contingency management programs with different incentives. Drug and alcohol dependence, 285, 113205. Advance online publication. https://doi.org/10.1016/j.drugalcdep.2026.113205