AMORÍN CAL, Raúl. Spontaneous cholecystocolonic fistulas: presentation of two cases. Cirugía del Uruguay, [S. l.], v. 40, n. 5, p. 409–411, 2021. Disponível em: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/2116. Acesso em: 26 may. 2026.