经内镜乳头括约肌切开术(EST)与开腹胆总管切开取石术治疗胆总管结石的疗效对比研究
경내경유두괄약기절개술(EST)여개복담총관절개취석술치료담총관결석적료효대비연구
Comparative study on efficacy of endoscopic sphincterotomy (EST) incision laparotomy the common bile duct lithotripsy for choledocholithiasis
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