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Authors
Hu, Yan
Ren, Si-Ying
Xiao, Peng
Yu, Feng-Lei
Liu, Wen-Liang
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Article History
Received: 26 February 2021
Accepted: 3 August 2021
First Online: 13 August 2021
Declarations
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: The study was approved by the Clinical Research Ethics Committee of the Second Xiangya Hospital, Central South University (No. 2021-ERCR001) and individual informed consent for this retrospective analysis was waived. This study was performed in accordance with the 1964 Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
