Journal of Coloproctology, Vol 41, Iss 03, Pp 289-294 (2021) Journal of Coloproctology (Rio de Janeiro), Volume: 41, Issue: 3, Pages: 289-294, Published: 08 NOV 2021 Journal of Coloproctology (Rio de Janeiro) v.41 n.3 2021 Journal of Coloproctology (Rio de Janeiro. Online) Sociedade Brasileira de Coloproctologia (SBCP) instacron:SBCP