Fischmann, Airton, and José Joaquim de Lima Guimarães. “ Infant Mortality Risk in Shantytown and Non-Shanty Town Residents in the City of Porto Alegre, Rio Grande Do Sul State, Brazil, 1980 ”. Revista De Saúde Pública, vol. 20, no. 3, June 1986, pp. 219-26, https://doi.org/10.1590/S0034-89101986000300005.