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\bibitem{Chevrou-Severac_etal2007} Chevrou-S{\'e}verac, H., Wieser, S., Holly, A., Br{\"u}gger, U., \& Schleiniger, R. (2007). \textit{Assessing the return on investments (cost-benefits) of prevention in Switzerland : a feasibility study}. Lausanne; Winterthur: Universit{\'e} de Lausanne, Institute of Health Economics and Management; Winterthurer Institut f{\"u}r Gesundheits{\"o}konomie.

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