沙氏导丝支撑三腔二囊管插入法治疗食管静脉曲张破裂出血的探索
사씨도사지탱삼강이낭관삽입법치료식관정맥곡장파렬출혈적탐색
Study on ballon tamponade insertion method supported by savary-gilliard wire guide for treating esophageal varices bleeding
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