RT Article T1 Substance use and abuse - research studies JF Journal of addictive diseases VO 13 IS 2 SP 109 OP 121 A1 Morgan, L. K. A2 Raper, J. E. LA English YR 1994 UL https://krimdok.uni-tuebingen.de/Record/1639407375 K1 Drogenforschung