Alcohol, age, and mortality: estimating selection bias due to premature death
Differential role of cannabis use motives in predicting impairment across three measures
Do differences in learning performance precede or follow initiation of marijuana use?
Do users of diverted medical cannabis differ from other cannabis users?
Reasons high school students use marijuana: prevalence and correlations with use across four decades
Vaporization of marijuana among recreational users: a qualitative study