RT Article T1 Sequence and stages in patterns of adolescent drug use JF Archives of general psychiatry VO 32 SP 923 OP 932 A1 Kandel, Denise A2 Faust, Richard LA English YR 1975 UL https://krimdok.uni-tuebingen.de/Record/1640046003 K1 Drogenkarriere K1 Verlaufsforschung