Arch Pediatr Adolesc Med -- Abstract: Some Go Without a Cigarette: Characteristics of Cannabis Users Who Have Never Smoked Tobacco, November 2007, Sur

Arch Pediatr Adolesc Med -- Abstract: Some Go Without a Cigarette: Characteristics of Cannabis Users Who Have Never Smoked Tobacco, November 2007, Suris et al. 161 (11): 1042: "Conclusions: Cannabis-only adolescents show better functioning than those who also use tobacco. Compared with abstainers, they are more socially driven and do not seem to have psychosocial problems at a higher rate."