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Authors
Liu, Xinkui https://orcid.org/0000-0002-8457-3003
Liu, Furong
Wang, Lin
Wu, MengFan
Yang, LinPeng
Wei, Le
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Funding
Funding for this research was provided by:
Henan Health Commission (SB201901021)
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Article History
Received: 1 April 2020
Accepted: 26 April 2021
First Online: 24 May 2021
Declarations
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: The authors obtained all essential permission from the Health Information Center of Henan Province to access the database of FPMRs. The ethics committee of The First Affiliated Hospital of Zhengzhou University ruled that no formal ethics approval was required in this particular case because the patients’ key information (e.g., name, ID number, admission number, etc.) had been de-identified and anonymized.
: Not applicable.
: The authors have no competing interests to declare.
