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Authors
Chen, Rui
Wang, Liguang
Zhao, Qi
Li, Zhen
Chen, Man
Lian, Guodong
Zhang, Junyong http://orcid.org/0000-0002-0222-8362
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Funding
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2017MH035, ZR2019QH014)
National Natural Science Foundation of China (81902349)
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Article History
Received: 17 September 2020
Accepted: 20 April 2021
First Online: 17 May 2021
Declarations
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: As this study is a retrospective study, ethics approval was not necessary after consulting the Ethics Committee of Shandong Provincial Hospital Affiliated to Shandong First Medical University&Shandong Academy of Medical Sciences.
: Not applicable.
: The authors have no conflict of interest.
