An analysis of the subjective marijuana experience
Methaqualone (Mandrax) abuse, urine testing, and identification: clinical correlation between a new mass urinalysis test and a military drug abuse program
Polydrug use by high-school students: involvement and correlates
Reliability and validity of self-reported illegal activities and drug use collected from narcotic addicts
Social-psychological correlates of drug use among Colombian university students
The culture of youth and drug abuse in some European countries