RT Article T1 Current trends in adolescent drug use JF Psychiatric annals VO 21 IS 2 SP 74 OP 79 A1 Smith, David E. A1 Ehrlich, Paul A1 Seymour, Richard B. A2 Ehrlich, Paul A2 Seymour, Richard B. LA English YR 1991 UL https://krimdok.uni-tuebingen.de/Record/1640157719 K1 Drogenkonsum K1 Adoleszenten