Mendoza Castillo, J. ., and J. Valverde Flores. “Concentration of Nitrogen Dioxide and Its Relationship in Acute Respiratory Infections in Children under 5 Years Old in Lima”. Journal of Energy &Amp; Environmental Sciences, vol. 2, no. 1, Sept. 2018, pp. 1-5, https://www.journals.cincader.org/index.php/eesj/article/view/34.