
Clinical Effect of Metoprolol Combined with Isosorbide Dinitrate and Aspirin in the Treatment of Elderly Patients with Unstable Angina of Coronary Heart Disease
LI Yunliang, DAI Zhengdong, KU Shunli.
Clinical Effect of Metoprolol Combined with Isosorbide Dinitrate and Aspirin in the Treatment of Elderly Patients with Unstable Angina of Coronary Heart Disease
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