Funding for this research was provided by:
the National Center for Global Health and Medicine
Received: 8 October 2020
Accepted: 28 June 2021
First Online: 15 July 2021
: This research was conducted after approval was obtained from the ethics committee of Kanagawa Institute of Technology (Kanagawa, Japan). Written informed consent was obtained voluntarily from all participants.
: Not applicable.
: The authors declare that they have no conflicts of interest.