2Takimoto Y, Nakamura T, Yamamoto Y, et al. The experimental replacement of a cervical esophageal segment with on artificial prosthesis with the use of collagen matrix and a silicone stent. J Thorac Cardiovasc Surg, 1998, 116:98-106.
4Valek V， Hrobar P， Mrazova J, et al.Metal stents in patients with malignant andbenign esophageal stenoses.Rozhl Chir， 1997， 76： 319－ 24.
5Cwikiel W， Willen R， Stridbeck H, et al.Self－ expanding stent in thetreatment of benign esophageal strictures： experimental study in pigs and presentationof clinical cases.Radiology， 1993， 187： 667.
6Binmoeller KF， Maeda M， Lieberman D,et al.Silicone－ Covered expandablemetallic stents in the esophagus： an experimental study.Endoscopy， 1992， 24： 416．
7Takimoto Y， Nakamura T， Yamamoto Y, et al.The experimental replacement of acervical esophageal segment with an artificial prosthesis with the use of collagen matrixand a silicone stent. J Thorac Cardiovasc Surg， 1998， 116： 98－ 106.
8Takimoto Y， Holstein CS.Long－ term follow－ up of the experimental replacementof the esophagus with a Collagen－ Silicon composite tube.ASAIO J， 1993， 39： M736.
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2Watkinson AF, Ellulj, Entwisle K, et al. Esophageal carcinoma:initial results of pallation treatment with covered self-expanding endoprostheses Radiology. 1995,195:821.
3Acunas B, Rozanes I, Akpinar S. et al. Palliation malignant esophageal structures with self-expanding nitinol stem :drawback and complications. Radiology. 1996,199 : 648.
