RT Article T1 Risk of cocaine use and dependence JF Substance use & misuse VO 32 IS 12/13 SP 1781 OP 1786 A1 Adams, E. H. A1 Gfroerer, J. A2 Gfroerer, J. LA English YR 1997 UL https://krimdok.uni-tuebingen.de/Record/1639873600 K1 Kokainkonsum K1 Risikofaktoren