O'Leary, Chris and Coren, Esther and Roberts, Anton (2025) The experiences of adults experiencing homelessness when accessing and using psychosocial interventions: a systematic review and qualitative evidence synthesis. Campbell Systematic Reviews, 21, (2), e70036. https://doi.org/10.1002/cl2.70036.

O'Leary, Chris and Coren, Esther and Gellen, Sandor and Roberts, Anton and Armitage, Harry (2025) The effectiveness of psychosocial interventions for reducing problematic substance use, mental ill health, and housing instability in people experiencing homelessness in high income countries: a systematic review and meta-analysis. Campbell Systematic Reviews, 21, (1), e70019. https://doi.org/10.1002/cl2.70019.

O'Leary, Chris and Ralphs, Rob and Stevenson, Jennifer and Smith, Andrew and Harrison, Jordan and Kiss, Zsolt and Armitage, Harry (2024) The effectiveness of abstinence-based and harm reduction-based interventions in reducing problematic substance use in adults who are experiencing homelessness in high income countries: a systematic review and meta-analysis. Campbell Systematic Reviews, 20, (2), e1396. https://doi.org/10.1002/cl2.1396.