球囊扩张与可回收支架治疗小儿良性食管狭窄的疗效比较(附68例报告)
구낭확장여가회수지가치료소인량성식관협착적료효비교(부68례보고)
Comparison of the Efficacy of Treating Benign Esophageal Stenosis by Balloon Dilatation Therapy and by Wihdrawable Sigma Stent Recyclable (Report of 68 Cases)
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