段氏
段氏-
大理国段氏为云南土著说质疑
Doubts about the Duans of the Dali Kingdom as Natives of Yunnan
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方法：33例食管贲门吻合口狭窄患者，在内镜及X线透视下，插入导丝并越过狭窄段，以沙氏探条扩张器由细至粗渐扩至10～15mm。
Methods : Thirty-three cases of esophageal cardiac and anastomotic mouth stricture were treated by inserting a lead through the stricture part under endoscopy and X-ray fluoroscopy , then a Savary-Gilliard dilator was used to dilate the stricture part slowly to 10-15 mm .