Association of Combined Marijuana and Opioid Use with Major Depressive Disorder Among Adults with Chronic Conditions in the United States. - Graham, Tiffany; Wiener, R. Constance; Mitra, Sophie; Wang, Hao; Shen, Chan; Pedaprolu, Laskhmi; Sambamoorthi, Usha (Substance Use: Research & Treatment, 2026)