Some go without a cigarette: characteristics of cannabis users who have never smoked tobacco.
http://marijuana.researchtoday.net/a…/4/11/1483.htm
Marijuana use motives and social anxiety among marijuana-using young adults.
http://marijuana.researchtoday.net/archive/4/8/1303.htm
http://marijuana.researchtoday.net/a…/4/11/1483.htm
Marijuana use motives and social anxiety among marijuana-using young adults.
http://marijuana.researchtoday.net/archive/4/8/1303.htm