Treatment re-entry and outcomes of opioid addicts during a four-year follow-up after drug abuse treatment in the United States
Intervention approaches for rural opium users
Drug consumption among the student population of Mexico City and its metropolitan area: subgroups affected and the distribution of users
Drug use among young people in Lagos, Nigeria
Variation in the THC content in illicitly imported Cannabis products
Observations on cannabinoid content in Cannabis sativa L. grown in Tuscany, Italy