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Consommation de cannabis par les élèves de 15 ans - Données issues de l'enquête internationale HBSC/OMS dans 32 pays occidentaux.
(French Monitoring Centre for Drugs and Drug Addiction, 2006-03)
In the 32 western countries that participated in the Health behaviour in school-aged children (HBSC 2002) survey conducted in schools, about 20% of 15-year-olds declared that they had already used cannabis, which is ...