Analysis on colour endoscopic mass survey and surgically resected esoph-ageal specimens on the subjects at high-incidence area for esophageal cancer in Henan是什麼意思_Analysis on colour endoscopic mass survey and surgically resected esoph-ageal specimens on the subjects at high-incidence area for esophageal cancer in Henan在線翻譯_英語_讀音_用法_例句