5Peter DS. Endoscopic therapeutic esophageal interventions: something old,something new,something to be established[J].Curr Opin Gastroenterol,2004,20:397-403.
5Valek V， Hrobar P， Mrazova J, et al.Metal stents in patients with malignant andbenign esophageal stenoses.Rozhl Chir， 1997， 76： 319－ 24.
6Cwikiel 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.
7Binmoeller KF， Maeda M， Lieberman D,et al.Silicone－ Covered expandablemetallic stents in the esophagus： an experimental study.Endoscopy， 1992， 24： 416．
8Takimoto 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.
9Takimoto Y， Holstein CS.Long－ term follow－ up of the experimental replacementof the esophagus with a Collagen－ Silicon composite tube.ASAIO J， 1993， 39： M736.
(
