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Authors
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Funding
Funding for this research was provided by:
natural science foundation of china (81903398)
Fundamental Research Funds for the Central Universities (YJ2021112)
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Article History
Received: 3 December 2020
Accepted: 10 February 2022
First Online: 26 March 2022
Declarations
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: The study was approved by the ethics committee of the first affiliated hospital of army medical university (KY2020151). As the study was retrospective, no informed consent was required. All patients are anonymous and their information is not public.
: Not applicable.
: The authors declare that they have no competing interests.
