RT Article T1 Correlation between drug use by teenagers and drug use by older family members JF American journal of drug and alcohol abuse VO 13 IS 1-2 SP 95 OP 108 A1 Gfroerer, J. LA German YR 1987 UL https://krimdok.uni-tuebingen.de/Record/1636888771 K1 Drogenmissbrauch K1 Familie