4Radeleff BA, Lopez Benitez R, Hallscheidt P, et al. Treatment of malignant biliary obstructions via the percutaneous approach. Radiologe, 2005,45:1020-1030.
5Cheng J L, Bruno MJ, Bergman J J, et al. Endoscopic palliation of patients with biliary obstruction caused by nonresectable hi lar cholangiocarcinoma: efficacy of self-expandable metallic wall-stents. Gastroinstent Endosc, 2002,56 : 33-39.
6Reed DNJr, Vitale GC,Martin R, et al. Bile duct carcinoma:trends in treatment in the nineties. Am Surg, 2000, 66: 711- 715.
7Do YS,Kao EY, Ganaha F, et al. In-stent restenosis limitation with stent-based controlled-release nitric oxide: initial results in rabbits. Radiology, 2004,230 : 377.