Funding for this research was provided by:
Institute for Information and Communications Technology Promotion (2017-0-01098)
Received: 6 July 2020
Accepted: 4 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: This study was approved by the institutional review board of our center (IRB number 1802-004-16143). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.