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\bibitem{Perrig-Chiello2007} Perrig-Chiello, P. (2007). La r{\'e}volution silencieuse de l{\textquoteright}{\^a}ge m{\^u}r, crise ou nouveau d{\'e}part {\`a} 40 ans? \textit{Spectra : pr{\'e}vention et promotion de la sant{\'e}}, (66; 12/2007), 4.

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