Received: 19 August 2021
Accepted: 15 December 2021
First Online: 4 January 2022
: The study was conducted in accordance with the Declaration of Helsinki and with the approval by the ethics committee of the University of Tokyo (no. 1264). Written informed consent was obtained from all the participants.
: Not applicable.
: All authors declare no conflict of interests and disclose no financial or personal relationships with other people or organizations that could have an inappropriate effect on this work.