RT Article T1 Smoking tobacco along with marijuana increases symptoms of cannabis dependence JF Drug and alcohol dependence VO 95 IS 3 SP 199 OP 208 A1 Ream, Geoffrey L. A2 Dunlap, Eloise A2 Johnson, Bruce D. A2 Benoit, Ellen LA English YR 2008 UL https://krimdok.uni-tuebingen.de/Record/1912705028 DO 10.1016/j.drugalcdep.2008.01.011