Silva, K. de S., C. Rechenmacher, R. V. de Morais, M. B. Michalowski, e L. E. Daudt. “Are There Regional Variations in the Presentation of Childhood Leukemia?”. Clinical and Biomedical Research, vol. 41, nº 3, outubro de 2021, https://seer.ufrgs.br/index.php/hcpa/article/view/108722.