1. Alwmark A, Anderson A, Lasson A. Primary carcinoma of the duodenum. Ann Surg. 1980;191(1):13–8.
2. Egberts JH, Scharrer ML, Hinz S, Schafmayer C, Klomp HJ, Faendrich F, et al. Small bowel cancer: single-centre results over a period of 12 years. Hepatogastroenterology. 2007;54(73):129–34.
3. Hu JX, Miao XY, Zhong DW, Dai WD, Liu W, Hu W. Surgical treatment of primary duodenal adenocarcinoma. Hepatogastroenterology. 2006;53(72):858–62.
4. Shao YF, Wu TC, Shan Y, Wu JX, Wang X, Zhao P. Clinico-pathological characteristics of surgical effect on periampullary cancers: report of 631 cases. Zhonghua Yi Xue Za Zhi. 2005;85(8):510–13.
5. Ramia JM, Villar J, Palomeque A, Muffak K, Mansilla A, Garrote D, et al. Duodenal adenocarcinoma. Cir Esp. 2005;77(4):208–12.