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Authors
Yi, Ning
Yuan, Hang
Xu, Nanwei
Liu, Ruiping
Wang, Yuji
Zhuang, Chao
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Article History
Received: 12 March 2023
Accepted: 15 December 2023
First Online: 18 January 2024
Declarations
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: This is a purely retrospective observational study, so the assignment of the medical intervention is not at the discretion of the investigators. This study has been granted an exemption from requiring ethics approval by the ethics committee of the Second People’s Hospital of Changzhou. Written informed consent was obtained from all participants included in the study. This study has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki.
: Not applicable.
: The authors declare no competing interests.
