DELGADO, Bolivar. The cost of routine operative cholangiography. Cirugía del Uruguay, [S. l.], v. 56, n. 1, p. 20–25, 1986. Disponível em: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/3679. Acesso em: 26 may. 2026.