M., Hector Losada, Andrés Troncoso T., Sonia Curitol, Jorge Silva A., and Samuel Zúñiga. 2019. “Extended Cholecystectomy in Gallbladder Cancer: Survival and Surgical Results in Two Time Periods”. International Surgery Journal 6 (2):470-74. https://doi.org/10.18203/2349-2902.isj20190386.