Devin, Joan, Lyons, Suzi ORCID: https://orcid.org/0000-0002-4635-6673, Murphy, Lisa, O'Sullivan, Michael and Lynn, Ena (2023) Factors associated with suicide in people who use drugs: a scoping review. BMC Psychiatry, 23, 655. https://doi.org/10.1186/s12888-023-05131-x.

McNicholas, Fiona and O'Sullivan, Michael and Lennon, Ruth and Doherty, Mairin and Adamson, Neil (2010) Deliberate self-harm (DSH) out of hours presentation. Irish Journal of Psychological Medicine, 27, (1), pp. 11-14. https://doi.org/10.1017/s0790966700000847.

Murphy, Lisa, Lyons, Suzi ORCID: https://orcid.org/0000-0002-4635-6673, O'Sullivan, Michael and Lynn, Ena (2020) Risk factors for completed suicide among people who use drugs: a scoping review protocol. HRB Open Research, 3, (45), https://doi.org/10.12688/hrbopenres.13098.2.

O'Sullivan, Michael (2018) Drug and alcohol abuse targeted in UN’s 2030 Agenda and 17 Sustainable Development Goals. Drugnet Ireland, Issue 67, Autumn 2018, pp. 5-6.

O'Sullivan, Michael (2018) Optimising treatment in opioid dependency in primary care. Drugnet Ireland, Issue 67, Autumn 2018, pp. 26-27.

O'Sullivan, Michael and Beattie, Thomas and Keane, CT (1984) A review of drug addict abscesses. Irish Medical Journal, 77, (3), 68 70.