Seva-Pereira, Adriana, Alberto Otoniel Franco, and Antonio Frederico Novaes de Magalhães. 1994. “Diagnostic Value of Fecal Leukocytes in Chronic Bowel Diseases”. São Paulo Medical Journal 112 (1):504-6. https://periodicosapm.emnuvens.com.br/spmj/article/view/741.