Funding for this research was provided by:
The Japan Society for the Promotion of Science (18H03132)
Received: 14 October 2020
Accepted: 24 June 2021
First Online: 30 June 2021
: The experimental procedure was approved by the Ethical Committee for Oita University School of Medicine. In accordance with the Declaration of Helsinki, we explained the purpose and possible consequences of this study to all participants and obtained their informed consent before the study commenced.
: Written informed consent for the publication was obtained from all the participants.
: The authors declare that they have no competing interests.