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\bibitem{Godoi_etal2013} {\textquotedblleft}\textit{Healthy environment : indoor air quality of Brazilian elementary schools nearby petrochemical industry}{\textquotedblright}. Godoi RHM, Godoi AFL, Gon{\c c}alves jr SJ, Paralovo SL, Borillo GC, Greg{\'o}rio Barbosa CG, Arantes MG, Ros{\'a}rio Filho NA, Grassi MT, Yamamoto CI, Potgieter-Vermaak S, Rotondo GG, De Wael K, Van Grieken R, The science of the total environment \textbf{463}, 639 (2013).   http://doi.org/10.1016/J.SCITOTENV.2013.06.043

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