胺碘酮联合美托洛尔治疗老年冠心病并发心律失常的临床观察
알전동연합미탁락이치료노년관심병병발심률실상적림상관찰
Clinical efficacy observation of Amiodarone and Metoprolol on elderly paients with coronary heart disease by cardiac arrhythmias
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