Robinson R. , R., Campos Saltos, J., Zambrano F. , P., & Villacis J., G. (1986). Whipple operation in gallbladder adenocarcinoma with invasion of the common bile duct and duodenum. Revista Universidad De Guayaquil, 66(4), 55-66. https://doi.org/10.53591/rug.v66i4.879