经胸超声心动图引导下封堵术治疗房间隔缺损的价值(附11例报告)
경흉초성심동도인도하봉도술치료방간격결손적개치(부11례보고)
The value of the Amplatzer septal occluder in the treatment of artrial septal defect guided by transthoracic echocardiography
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