J. do R. de M. Caetano, I. A. S. Bordin, R. F. Puccini, and C. de A. Peres, “ Factors associated to hospitalization of children under five years of age, Brazil ”, Rev. saúde pública, vol. 36, no. 3, pp. 285–291, Jun. 2002, doi: 10.1590/S0034-89102002000300005.