Fleury, Ronan and Dooley, Niamh and Staines, Lorna and Hoey, John and Healy, Colm and Gillan, Diane and O'Higgens, Fiachra and O'Dowd, Teresa and Smyth, Bobby and Cannon, Mary (2026) Adolescent polysubstance use and psychopathology: a population-based survey in schools. Irish Journal of Psychological Medicine , Early online , pp. 1-10.