RT Article T1 Prevalence and attitudes regarding marijuana use among adolescents over the past decade JF Pediatrics VO 140 IS 6 A1 Miech, Richard A2 O'Malley, Patrick M. A2 Johnston, Lloyd D. LA English YR 2017 UL https://krimdok.uni-tuebingen.de/Record/1912660989 DO 10.1542/peds.2017-0982