超声心动图在经胸小切口房间隔缺损封堵术中的应用价值
徐 明;黄 苏;胡传贤;徐长松
The value of echocardiography in transthoracic atrial septal defect occlusion
XU Ming;HUANG Su;HU Chuan-xian;XU Chang-song
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