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Article History

Received: 30 January 2021

Accepted: 9 February 2022

First Online: 18 February 2022

Declarations

:

: The project was approved by the Ethics Committee of the Beijing Ditan Hospital, Capital Medical University, and was performed in accordance with the Declaration of Helsinki of 1975, as revised in 1983. Written informed consent was obtained from all patients. Information that could identify individual participants during or after data collection was not available.

: Not applicable.

: The authors declare that they have no competing interests.