RT Article T1 A 12-step treatment approach for marijuana (cannabis) development JF Journal of substance abuse treatment VO 6 IS 4 SP 241 OP 250 A1 Müller, Norman S. A1 Gold, Mark S. A1 Pottach, A. Carter LA English YR 1989 UL https://krimdok.uni-tuebingen.de/Record/1639551603 K1 Suchtmittelmißbrauch K1 Marihuana K1 Therapie