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\bibitem{various2008} various. (2008). \textit{Premi{\`e}re ligne : le journal : num{\'e}ro 8 : Responsabilisation des usagers de drogues : l{\textquoteright}exemple du projet {\textquotedblleft}pairs{\textquotedblright}}. Gen{\`e}ve: Premi{\`e}re Ligne.

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