Associations of Cannabis Use, High-Risk Alcohol Use, and Depressive Symptomology with Motivation and Attempts to Quit Cigarette Smoking Among Adults: Findings from the 2020 ITC Four Country Smoking and Vaping Survey. - Gravely, Shannon; Driezen, Pete; Shahab, Lion; McClure, Erin A.; Hyland, Andrew; Cummings, K. Michael; East, Katherine A.; Chan, Gary C. K.; Walsh, Hannah; Benowitz, Neal L.; Gartner, Coral E.; Fong, Geoffrey T.; et al. (International Journal of Mental Health & Addiction, 2025)