Barrett, Peter and O'Donnell, Kate and Fitzgerald, Michael and Schmidt, AJ and Hickson, F and Quinlan, M and Keogh, P and O'Connor, L and McCartney, D and Igoe, Derval (2019) Drug use among men who have sex with men in Ireland: Prevalence and associated factors from a national online survey. International Journal of Drug Policy, 64, pp. 5-12. https://doi.org/10.1016/j.drugpo.2018.11.011.

Brinkley, Aoife and Fitzgerald, Michael and Greene, Sheila (1999) Substance use in early adolescence: a study of the rates and patterns of substance use among pupils in Dublin. [Dublin]: [University of Dublin, Trinity College].

Cleary, Anne and Fitzgerald, Michael and Nixon, Elizabeth (2004) From child to adult: a longitudinal study of Irish children and their families. Dublin: University College Dublin.

Cleary, Anne and Nixon, Elizabeth and Fitzgerald, Michael (2007) Psychological health and well-being among young Irish adults. Irish Journal of Psychological Medicine, 24, (4), pp. 139-144. DOI: https://doi.org/10.1017/S0790966700010569.

Faraone, Stephen V and Banaschewski, Tobias and Coghill, David and Zheng, Yi and Biederman, Joseph and Bellgrove, Mark A and Newcorn, Jeffrey H and Gignac, Martin and Al Saud, Nouf M and Manor, Iris and Rohde, Luis Augusto and Yang, Li and Cortese, Samuele and Almagor, Doron and Stein, Mark A and Albatti, Turki H and Aljoudi, Haya F and Alqahtani, Mohammed M J and Asherson, Philip and Atwoli, Lukoye and Bölte, Sven and Buitelaar, Jan K and Crunelle, Cleo L and Daley, David and Dalsgaard, Søren and Döpfner, Manfred and Espinet, Stacey and Fitzgerald, Michael and Franke, Barbara and Gerlach, Manfred and et, al. (2021) The World Federation of ADHD international consensus statement: 208 evidence-based conclusions about the disorder. Neuroscience and Biobehavioral Reviews, 128, pp. 789-818. doi: 10.1016/j.neubiorev.2021.01.022.

Fitzgerald, Michael and Barry, Joseph and O'Sullivan, P and Thornton, Lelia (2001) Blood-borne infections in Dublin's opiate users. Irish Journal of Medical Science, 170, (1), pp. 32-34.

McArdle, Paul and Wiegersma, Auke and Gilvarry, Eilish and Kolte, Brigitta and McCarthy, Steven and Fitzgerald, Michael and Brinkley, Aoife and Blom, Maria and Stoeckel, Ingo and Pierolini, Anna and Michels, Ingo and Johnson, Rob and Quensel, Stephan (2002) European adolescent substance use: the roles of family structure, function and gender. Addiction, 97, (3), pp. 329-336.

McArdle, Paul and Wiegersma, Auke and Gilvarry, Eilish and McCarthy, Steven and Fitzgerald, Michael and Kolte, Brigitta and Brinkley, Aoife and Blom, Maria and Stoeckel, Ingo and Pierolini, Anna and Michels, Ingo and Johnson, Rob and Quensel, Stephan (2000) International variations in youth drug use: the effect of individual behaviours, peer and family influences, and geographical location. European Addiction Research, 6, (4), pp. 163-169.

O'Neill, Therese and Fitzgerald, Michael and McGee, Hannah (1991) Use of alcohol and other drugs by mothers and children attending a child psychiatric clinic. Irish Journal of Psychiatry, 12, (2), pp. 3-5.