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１临床资料１９８０年１月～１９９７年１２月，我院共行食管癌切除术４９０例。其中上胸段食管癌２１例，中胸段食管癌２９０例，下胸段食管癌１７９例。鳞癌４７４例，腺鳞癌１１例，腺癌５例。男性３２５例，女性１６５例。年龄３３～８０岁，平均５５岁。据邵令方食管癌临?
1 Clinical data From January 1980 to December 1997, 490 cases of esophageal cancer resection were performed in our hospital. There were 21 cases of upper thoracic esophageal cancer, 290 cases of middle thoracic esophageal cancer, and 179 cases of lower thoracic esophageal cancer. There were 474 squamous cell carcinomas, 11 adenosquamous carcinomas and 5 adenocarcinomas. There were 325 males and 165 females. Age 33-80 years old, average 55 years old. According to Shao Lingfang’s esophageal cancer?