Short-Acting Endovenous Beta-Blockers and Echocardiography-Guided Heart Rate  Optimization in A Type 4a Myocardial Infarction Complicated by Cardiogenic Shock

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Short-Acting Endovenous Beta-Blockers and Echocardiography-Guided Heart Rate Optimization in A Type 4a Myocardial Infarction Complicated by Cardiogenic Shock 1