RT Article T1 Simultaneous alcohol and marijuana use among underage young adults in the United States JF Addictive behaviors VO 88 SP 77 OP 81 A1 Patrick, Megan E. A2 Schulenberg, John E. -2023 A2 Lee, Christine A2 Terry-McElrath, Yvonne LA English YR 2019 UL https://krimdok.uni-tuebingen.de/Record/1912704056 DO 10.1016/j.addbeh.2018.08.015