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\bibitem{Staub2009} Staub, R. (2009). R{\'e}f{\'e}rence plus large pour pr{\'e}vention du VIH/sida plus efficace : r{\'e}orientation du programme sida de l{\textquoteright}OFSP au sein du programme national VIH/sida. \textit{Spectra : pr{\'e}vention et promotion de la sant{\'e}}, (72; 01/2009), 2.

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