Longitudinal predictors of cannabis use and dependence in offspring from families at ultra high risk for alcohol dependence and in control families Hill SY, Jones BL, Steinhauer SR, Zezza N and Stiffler S American Journal of Medical Genetics Part B: Neuropsychiatrics Genetics, 171:383-95, 2016 Cannabis use is common among adolescents. Identifying the factors associated with continued heavy use into young adulthood...