3Siersema PD,Hop WCJ, Van Blankenstein M,et al. A new design metal stent(Flamingo stent)for palliation of malignant dysphagia:a prospective study[J].Gastrointest Endosc,2000, 51(2):139-145.
4Liu JF, Wang QZ,Hou J.Surgical treatment for cancer of theoesophagus and gastric cardia in Hebei,China[J].Br J Surg, 2004,91 (1):90-98.