Trends in Mental Health Symptoms, Nicotine Product Use, and Their Association Over Time Among Adolescents in Canada, England, and the US: Findings From the ITC Adolescents Tobacco and Vaping Survey, 2020–2023. - Hackworth, Emily E; Vidaña-Pérez, Desiree; O'Neal, Riley; Kim, Minji; Fillo, Jennifer; Hammond, David; Thrasher, James F (Nicotine & Tobacco Research, 2025)