结论：食道覆膜支架置入术治疗食管狭窄，是一种简便、安全、有效的治疗方法。
Conclusions: The treatment of esophageal covered stent insertion is a easy, safe and effective method to esophagus stricture.
结论：食道覆膜支架置入术治疗食管狭窄，是一种简便、安全、有效的治疗方法。
Conclusions: The treatment of esophageal covered stent insertion is a easy, safe and effective method to esophagus stricture.
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