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Authors
Wang, Qiang
Chen, Shu
Yan, Jun
Brismar, Torkel
Sparrelid, Ernesto
Qu, Chengming
Ji, Yujun
Chen, Shihan
Ma, Kuansheng
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Article History
Received: 28 February 2021
Accepted: 7 May 2021
First Online: 18 May 2021
Declarations
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: This study was performed in accordance with the Helsinki Declaration. The research protocol was approved by the Southwest Hospital Ethics Committee Hospital Ethics Committee (No. KY2020177) and written informed consent was waived from all patients due to the nature of a retrospective study.
: Not applicable.
: The authors declare that they have no competing interests.
: Written informed consent was waived from all patients due to the nature of a retrospective study.
