Methods The clinical data of 325 patients receiving resection of thoracic middle-lower segment esophageal carcinoma were retrospectively studied.
方法：回顾性分析325例经手术切除胸中下段食管癌患者的临床资料。
The site of thoracic esophageal carcinoma was correlated to upper, middle, and lower mediastinal LMR(P<0.01).
食管癌病变部位与上、中、下纵隔淋巴结转移度无显著相关（P<0 .0 1） ；
The site of thoracic esophageal carcinoma was correlated to upper, middle, and lower mediastinal LMR(P<0.01).
食管癌病变部位与上、中、下纵隔淋巴结转移度无显著相关（P<0 .0 1） ；
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