1[2]Saxon RR,Morrison KE,Lakin PC.,et al.Malignant esophageal obstruction and esophagorespiratory fistula:palliation with a polyethylene-coverd Z-stent[J].Radiology,1997,202:349-354.
2[3]Song HY,Park SL,Do YS,et al.Expandable metallic stent placement in patiengs with benign esophageal strictures:results of long-term follow-up[J].Radiology,1997,203:131-136.
6Parkin DM, Bray FI, Devesa SS. Cancer burden in the year 2000, The global picture. Eur J Cancer, 2001, 37 Suppl8: S4-66.
7Frimberger E. Expanding spiral--a new type of prosthesis for the palliative treatment of malignant esophageal stenoses. Endoscopy, 1983, 15 Suppl 1: 213-214.
8Stack RS, Califf RM, Phillips HR, et al. lnterventional cardiac catheterization at Duke Medical Center. Am J Cardi0t, 1988, 62: 3F-24F.
