倍他乐克注射液对非心脏手术患者所伴心血管合并症的治疗效果
배타악극주사액대비심장수술환자소반심혈관합병증적치료효과
An effect comparison of perioperative intravenous metoprolol bolus in 137 cases and intravenous calcium iron antagonist injection in 128 cases with noncardiac surgery
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