S. E. C. Macedo, A. M. B. Menezes, E. Albernaz, P. Post, and M. Knorst, “ Risk factors for acute respiratory disease hospitalization in children under one year of age ”, Rev. saúde pública, vol. 41, no. 3, pp. 351–358, Jun. 2007, doi: 10.1590/S0034-89102007000300005.