Nakai, Kazushi https://orcid.org/0000-0001-8580-5876
Tanaka, Soichi
Kanayama, Kozo
Yoshimura, Tsuyoshi
Funding for this research was provided by:
Yamaha Corporation and Kyoto University
Article History
Received: 18 June 2020
Accepted: 14 September 2020
First Online: 29 September 2020
Competing interests
: The authors declare that they have no conflict of interest.