3Fok M,Sham JS, Choy D,et al. Postoperative radiotherapy for carcinoma of the esophagus: a prospective, randomized controlled study. Surgery, 1993,113 : 138-147.
4Teniere P, Hay JM, Fingerhut A, et al. Postoperative radiation therapy does not increase survival after curative resection for squamous cell carcinoma of the middle and lower esophagus as shown by a multhicenter controlled trial. Surg Gynecol Obstet, 1991,173 : 123- 129.
5Zieren HU, Muller JM, Jacobi CA, et al. Adjuvant postoperative radiation therapy after curative resection of squamous cell carcinoma of the thoracic esophagus : a prospective randomized study. World J Surgery, 1995,19:444-449.
6XiaoZF, Yang ZY, Liang J, et al. Value of radiotherapy after radical surgery for esophageal carcionma: a report of 495 patients. Ann Thorac Surg,2003 ,75 :331-336.
7Xiao ZF,Yang ZY, Miao Y J, et al. Influence of number of metastatic lymph node on the survival of curative resected thoracic esophageal cancer and its value of radiotherapy: randomized controlled trial on 549 cases. Int J Radiat Oncol Biol Phys,2005,62: 82-86.
8Skinner DB, Ferguson MD,Soriano A,et al. Selection of operation for esophageal cancer based on staging. Ann Surg, 1986,204:391- 401.
9Ellis FH Jr, Heatley G J, Krasna M J, et al. Esophagogastrectomy for carcinoma of the esophagus and eardia: a comparison of findings and results after standard resection in three consecutive eight-year inter-vals with improved staging criteria. J Thorae Cardiovase Surg, 1997,113:836-848.
10Korst R J, Rusch VW, Venkatraman E, et al. Proposed revision of the staging classification for esophageal cancer. J Thorac Cardiovasc Surg, 1998,115:660-670.
