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Correlation between heart rate variability and left ventricular stiffness in patients with heart failure with preserved ejection fraction
LIANG Yi, XU Liangjie, WANG Chunliang
JOURNAL OF PRACTICAL ELECTROCARDIOLOGY . 2024, (5): 433 -437 .  DOI: 10.13308/j.issn.2095-9354.2024.05.001