Reviews & Research Summaries A selection of resources sharing evidence relevant to the delivery of psychological interventions on humanitarian settings. [Go back] Lay Health Worker Experiences of Task-Shifting WHO Prevalence Estimates of Mental Disorders Global Psychological Treatments A MHIN summary for the systematic review entitled 'Psychological Treatments for the World: Lessons from Low- and Middle-Income Countries' (Singla et al., 2017). Impact of MHPSS in LMICs Systematic review drawing together primary research on the process of implementing MHPSS programmes, their receipt by affected populations, and their intended and unintended effects. Alcohol and Substance Use in Crisis Settings This article presents an overview of the problem and existing assessment and intervention tools to address substance use in conflict and post-conflict situations and provides a set of recommendations to address this important public health matter. Interventions for PTSD for People with HIV A systematic review on interventions for adult post-traumatic stress disorder in people living with HIV from resource-poor settings. Migration and Mental Health Database A comprehensive collection of academic resources focused specifically on the topic of migration and mental health.