Objective To explore the clinical curative effect of endoscopic dilation for benign or malignant stricture of esophagus and cardia.
目的探讨内镜扩张治疗食管及贲门的良（恶）性狭窄的临床疗效。
Objective To evaluate the effect of memory alloy stent in the treatment of benign and malignant stricture of esophagus and cardia.
目的评价记忆合金内支架治疗食管及贲门部良恶性狭窄的效果。
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