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\bibitem{Jacobs_etal2012} {\textquotedblleft}\textit{Acute changes in pulse pressure in relation to constituents of particulate air pollution in elderly persons}{\textquotedblright}. Jacobs L, Buczy{\'n}ska A, Walgraeve C, Potgieter-Vermaak S, Van Grieken R, et al, Environmental research \textbf{117}, 60 (2012).   http://doi.org/10.1016/J.ENVRES.2012.05.003

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