Journal Pre-proof Monoamine Oxidase A Genotype and Methylation Moderate the Association of Maltreatment and Aggressive Behaviour David Checknita (Conceptualization) (Methodology) (Formal analysis) (Writing - original draft) (Writing - review and editing), Megha Bendre (Conceptualization) (Methodology) (Writing - review and editing), Tomas J. Ekstr¨ om (Conceptualization) (Writing - review and editing), Erika Comasco (Conceptualization) (Resources) (Writing - review and editing), Jari Tiihonen (Funding acquisition) (Resources) (Writing - review and editing), Sheilagh Hodgins (Conceptualization) (Writing - original draft) (Supervision) (Resources) (Funding acquisition) (Writing - review and editing), Kent W. Nilsson (Conceptualization) (Methodology) (Writing - original draft) (Supervision) (Funding acquisition) (Project administration) (Writing - review and editing) PII: S0166-4328(19)31279-3 DOI: https://doi.org/10.1016/j.bbr.2020.112476 Reference: BBR 112476 To appear in: Behavioural Brain Research Received Date: 4 September 2019 Revised Date: 25 November 2019 Accepted Date: 7 January 2020 Please cite this article as: Checknita D, Bendre M, Ekstr¨ om TJ, Comasco E, Tiihonen J, Hodgins S, Nilsson KW, Monoamine Oxidase A Genotype and Methylation Moderate the Association of Maltreatment and Aggressive Behaviour, Behavioural Brain Research (2020), doi: https://doi.org/10.1016/j.bbr.2020.112476