Journal of Coloproctology (Rio de Janeiro) v.41 n.4 2021 Journal of Coloproctology (Rio de Janeiro. Online) Sociedade Brasileira de Coloproctologia (SBCP) instacron:SBCP Journal of Coloproctology (Rio de Janeiro), Volume: 41, Issue: 4, Pages: 430-437, Published: 24 JAN 2022 Journal of Coloproctology, Vol 41, Iss 04, Pp 430-437 (2021)