Funding for this research was provided by:
Japan Society for the Promotion of Science (JP18K07495)
Received: 20 November 2020
Accepted: 2 February 2021
First Online: 11 February 2021
Ethics approval and consent to participate
: This study was approved by the Research Ethics Committee of Faculty of Medicine, University of Yamanashi (#734 and #953), and written informed consent for participation was obtained from all the participants.
: Written informed consent for publication was obtained from all the participants.
: The authors disclose no potential conflicts of interest.