经胸超声引导下无放射线经皮房间隔缺损伞堵术6例分析
경흉초성인도하무방사선경피방간격결손산도술6례분석
Percutaneous amplatzer device closure of atrial septal defect through femoral vein guiding by transthoracic echocardiography without radiation and general anesthesia:report and analysis of six cases
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