急性心肌梗死后小剂量多巴酚丁胺超声心动图试验对梗死区存活心肌的研究
급성심기경사후소제량다파분정알초성심동도시험대경사구존활심기적연구
A study of low dose dobutamine stress echocardiography for identification of myocardial viability in patients after myocardial infarction
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