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Authors
Jin, Tian
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Article History
Received: 21 July 2021
Accepted: 30 August 2021
First Online: 11 September 2021
Declarations
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: The authors declare that they have no competing interests.
: The Ethics Committee of Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine of Hebei Province approved this study.
: Informed consent was signed by all patients and controls.
