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Authors
Sun, Jingyang
Zhang, Bohan
Geng, Lei
Zheng, Qingyuan
Li, Juncheng
Cao, Wenzhe
Ni, Ming
Zhang, Guoqiang
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Article History
Received: 15 March 2021
Accepted: 23 May 2021
First Online: 31 May 2021
Declarations
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: This retrospective review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the medical ethics committee of our hospital. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
