5Isono K,Sato H,Nakayama K. Results of a nationwide study on the three- field lymph node dissection of esophageal cancer. Oncology,1991,48:411- 420.
6Nigro JJ,Hagen JA,DeMeester TR,et al. Prevalence and location of nodal metastasis in distal esophageal adenocarcinoma confined to the wall:implication for therapy. J Thorac Cardiovasc Surg,1999,117:16- 25.
7Udagawa H,Akiyama H. Surgical treatment of esophageal cancer:Tokyo experience of the three- field technique. Dis Esophagus,2001,14:110- 114.
8Holscher AH,Bollschweiler E,Bumm R,et al. Prognostic factors of resected adenocarcinoma of the esophagus. Surg,1995,118:845- 855.
9Altorki NK,Skinner DB. Occult cervical nodal metastasis in esophageal cancer:preliminary results of three- field lymphadenectomy. J Thorac Cardiovasc Surg,1997,113:540- 544.
10Fang W,Kato H,Chen W,et al. Comparison of surgical management of thoracic esophageal carcinoma between two referral centers in Japan and China. Jpn J Clinic Oncol,2001,31:203- 208.
