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| Diagnostic Value of Cardiac Color Doppler Ultrasonography in Patients with Coronary Heart Disease and Heart Failure with Different Cardiac Function Grades |
| CHEN Qiuyan, HUANG Juanping, QIU Wenfang |
| First-author's address: Department of Physical Examination, Ganzhou Women and Children's Health Care Hospital, Ganzhou 341001, China |
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Received: 08 January 2024
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