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| Clinical Effect of Bisoprolol Combined with Amlodipine in the Treatment of Elderly Patients with Coronary Heart Disease and Hypertension |
| YUAN Min, GAO Haijun, ZHA Yuanqiong, WU Qin, LOU Guoliang |
| First-author's address: Department of Internal Medicine, Provincial Medical Post and Telecommunications Hospital, Guiyang 550001, China |
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Received: 29 October 2024
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