Funding for this research was provided by:
Japan Society for the Promotion of Science
Received: 9 October 2019
Accepted: 9 September 2020
First Online: 15 October 2020
Ethics approval and consent to participate
: The study protocol, materials, and consent documents were approved by the Ethical Review Committee of Kyoto University prior to the initiation of data collection. Informed consent was obtained from all participants.
: Not applicable
: The authors declare that they have no competing interests.