Hanrahan, Michael T and Millar, Seán R and Mongan, Deirdre and Lyons, Suzi and Galvin, Brian (2025) Prevalence of problematic opioid use in Ireland, 2020–2022. Dublin: Health Research Board.

Millar, Seán R and Harrington, Janas M and Perry, Ivan J and Phillips, Catherine M (2025) Associations between ultra-processed food and drink consumption and biomarkers of chronic low-grade inflammation: exploring the mediating role of adiposity. European Journal of Nutrition , 64 , (4) .

Mongan, Deirdre and Millar, Sean R and Doyle, Anne and Chakraboty, Shelly and Galvin, Brian (2022) Gambling in the Republic of Ireland. Results from the 2019–20 National Drug and Alcohol Survey. Dublin: Health Research Board.

Duffin, Tony and Keane, Marcus and Millar, Sean R (2020) Street tablet use in Ireland: a Trendspotter study on use, markets, and harms. Dublin: Ana Liffey Drug Project.

Mongan, Deirdre and Millar, Sean R and O'Dwyer, Claire and Galvin, Brian and Smyth, Bobby P (2023) Trends in public attitudes to permitting cannabis for recreational use: analysis of Irish survey data since 2002. European Journal of Public Health , 33 , (4) , pp. 627-632.