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Authors
Zhang, Ling
Wang, Yu
Xu, Qiuhua
Zhang, Wei
Liang, Hongyuan
Wu, Liang
Ni, Liang
Gao, Guiju
Yang, Di
Zhao, Hongxin
Xiao, Jiang
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Article History
Received: 17 June 2021
Accepted: 15 December 2021
First Online: 4 January 2022
Declarations
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: Informed consent was waived by the Human Science and Ethics Committee of Beijing Ditan Hospital, Capital Medical University, due to the retrospective nature of the study and the anonymized data obtained from the medical records of the participants. The clinical ethics review committee of Beijing Ditan Hospital approved the study procedure. All procedures were carried out following the relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.
