TY - JOUR AU - Boumparis, N; Loheide-Niesmann, L; Blankers, M TI - Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis JO - Drug Alcohol Depend VL - 200 PY - 2019 DO - 10.1016/j.drugalcdep.2019.03.016 L3 - PubMed-ID: 31112834 SP - 82 EP - 94 N1 - et al. ER -