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Authors
Li, Shuangping
Gao, Pengfei
Qiu, Jiayong
He, Xuegai
Mao, Yimin
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Funding
Funding for this research was provided by:
Natural Science Foundation of Henan Province (18230041036)
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Article History
Accepted: 6 February 2021
First Online: 18 February 2021
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: The study protocol was approved by the Ethics Committee of the First Affiliated Hospital of Henan University of Science and Technology. The requirement for written informed consent from study participants was waived because this is a retrospective study with anonymized patient data collection and analysis.
