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Article History

Received: 7 July 2021

Accepted: 29 November 2021

First Online: 5 December 2021

Declarations

:

: This study was approved by the Tokyo Medical University institutional review board (approval no. T2020-0379). Written informed consent was obtained from all subjects for the publication of this report. A copy of the consent form is available for review upon request. All methods in this study were performed in accordance with the ethical standards of the institutional research committee and with the declaration of Helsinki.

: Not applicable.

: The authors declare that they have no competing interests.