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\bibitem{Observatoireeuropeendesdroguesetdestoxicomanies2010} Observatoire europ{\'e}en des drogues et des toxicomanies. (2010). \textit{Consumo problematico di amfetamine e metamfetamine in Europa : sintesi -- questione specifica}. Lisbona: Observatoire europ{\'e}en des drogues et des toxicomanies (OEDT).

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