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Authors
Zhang, Lei http://orcid.org/0000-0003-4105-0824
Yun, Shuang
Wu, Tiange
He, Yujie
Guo, Jinyan
Han, Lishuai
Lu, Jiameng
Liu, Xiaojun
Yang, Rui
Zhang, Shitao
Li, Tianfang
Liu, Shengyun
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Article History
Received: 11 April 2020
Accepted: 7 May 2021
First Online: 17 May 2021
Declarations
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: This retrospective cohort study was approved by the Ethic Committee of Zhengzhou University (SR-2018-LW-050) and was conducted in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare no conflict of interest.
