4Bellschart V, Rahman MQ, Engelken FJ, el al. Presentation, treatmenl and outcome in patienls with ampullary turnouts [J]. Br J Surg, 2004, 91 ( 12): 1600-1607.
5Beger HG, Treitschke F, Gansauge F, et al. Tumor of the ampulla of Vater: experience with local or radical resection in 171 consecutively treated patients [J].Arch Surg, 1999, 134 (5): 526-532.