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Authors
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Funding
Funding for this research was provided by:
Medical science research Project of Hebei Province (20190533)
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Article History
Received: 19 February 2021
Accepted: 29 September 2021
First Online: 6 November 2021
Declarations
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: The authors declare that they have no conflict of interest.
: This study was approved by the Ethics Committee of Second Hospital of Hebei Medical University. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: The written form of consent was obtained from each participant.
