Case report: Acute cholecystitis complicared with colocystocolonic fistula. International Seven Journal of Health Research, [S. l.], v. 2, n. 4, p. 659–667, 2023. DOI: 10.56238/isevjhv2n4-017. Disponível em: https://sevenpubl.com.br/ISJHR/article/view/2352. Acesso em: 21 aug. 2025.