Carvalho, Fernando Martins, et al. “ Lead and Cadmium in the Blood and Their Relation to the Nutritional Status of Children in Santo Amaro, Bahia, Brazil ”. Revista De Saúde Pública, vol. 21, no. 1, Feb. 1987, pp. 44-50, https://doi.org/10.1590/S0034-89101987000100007.