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Authors
Song, Hailong
Chen, Ziying
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Article History
Received: 9 April 2021
Accepted: 7 March 2022
First Online: 17 March 2022
Declarations
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: This study was performed in accordance with the Declaration of Helsinki and was approved by Ethics Committee of the Second Hospital of Hebei Medical University, which also granted exemption from obtaining informed consent.
: Not applicable.
: The authors declared that they have no conflict of interest or any other competing interest regarding results and/or discussion reported in the research.
