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\bibitem{various2005} various. (2005). Dossier HIV-Pr{\"a}vention = Dossier pr{\'e}vention du VIH. \textit{Schweizerische {\"A}rztezeitung = Bulletin des m{\'e}decins suisses}, \textit{86}(28; 2005), 1729--1752.

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