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Authors
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Funding
Funding for this research was provided by:
the Key Projects of Intergovernmental International Scientific and Technological Innovation Cooperation (2019YFE0190500)
The Key Guidance Project of Scientific Research Subject of Hunan Provincial Health Commission (202204014372)
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Article History
Received: 28 March 2022
Accepted: 16 June 2022
First Online: 12 July 2022
Declarations
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: The authors have no conflicts of interest to declare.
: All data were obtained from public databases and The SXH Research Ethics Committee has confirmed that no ethical approval is required.
: There was no contact with patients for data collection.
: Informed consent was not required.
: Consent for publication was not required.
