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| Clinical Effect of Xintong Oral Liquid Combined with Metoprolol in the Treatment of Unstable Angina (Phlegm Stasis Obstruction Type) in Elderly Patients with Coronary Heart Disease |
| SHI Xiuming, ZHANG Ting, SHI Ying, FENG Ji |
| First-author's address: Department of Cardiovascular Medicine, Jingdezhen First People's Hospital, Jingdezhen 333000, China |
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