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Article History

Received: 15 September 2021

Accepted: 12 November 2021

First Online: 29 November 2021

Declarations

:

: This study was approved by the human research committee of the Institutional Review Board at Gifu University school of medicine, Japan (Ethics Committee; 28–344), and in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The requirement for written informed consent was waived due to the retrospective nature of the study.

: Not applicable.

: The authors declare that they have no competing interests.