López, A.E., Ortega, E.E., de Elías, E. and López, F.G. 2021. Gallstone ileus: A condition that persists over time. Revista Argentina de Cirugía. 113, 1 (Feb. 2021), 56–61. DOI:https://doi.org/10.25132/raac.v113.n1.1513.ei.