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Authors
Ni, Qianqian
Sun, Zhi Yuan
Qi, Li
Chen, Wen
Yang, Yi
Wang, Li
Zhang, Xinyuan
Yang, Liu
Fang, Yi
Xing, Zijian
Zhou, Zhen
Yu, Yizhou
Lu, Guang Ming
Zhang, Long Jiang https://orcid.org/0000-0002-6664-7224
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Article History
Received: 4 March 2020
Revised: 6 June 2020
Accepted: 22 June 2020
First Online: 2 July 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Long Jiang Zhang.
: All authors have no conflicts of interest to disclose.
: Zhen Zhou kindly provided statistical advice for this manuscript.One of the authors has significant statistical expertise.No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: Study subjects or cohorts have not been previously reported.
: • retrospective• multicenter study
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