球囊导管扩张术治疗食管癌、贲门癌术后吻合口狭窄21例临床分析
구낭도관확장술치료식관암、분문암술후문합구협착21례림상분석
Clinical analysis on balloon dilatation for the treatment of postoperativeanastomotic stenosis in 21 cases with esophageal and cardiac cancer
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