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Article History

Received: 28 January 2021

Accepted: 22 April 2021

First Online: 9 June 2021

Declarations

:

: This retrospective investigation was approved by the Research Ethics Committee of Guangdong General Hospital, Guangdong Academy of Medical Sciences. [No. GDREC2017172h]. Each participant provides written informed consent to collect all data before the study and was anonymized before analyses.

: Not applicable.

: The authors declare that they have no competing interests.