Gonzáles M., A., Rojas, O.L., Gómez, E. and Torres, E. 1989. Etiology, management, and outcomes of biliary obstructive disease at the Hospital Universitario del Valle, Cali, Colombia. Colombia Medica. 20, 2 (Jun. 1989), 64–70. DOI:https://doi.org/10.25100/cm.v20i2.6251.