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Authors
Chen, Yongliang
Xue, Jing
Yan, Xiaoli
Fang, Da-guang
Li, Fangliang
Tian, Xuefei
Yan, Peng
Feng, Zengbin
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Article History
Received: 21 March 2023
Accepted: 15 July 2023
First Online: 28 July 2023
Declarations
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: The authors report no conflicts of interest in this work.
: The ethics committee of the Affiliated Hospital of Chengde Medical College has waived the need for ethical approval for the reasons that the present study used public database, so it did not involve ethics.
: Not applicable.
