Shigihara, Yoshihito https://orcid.org/0000-0003-0996-110X
Hoshi, Hideyuki
Shinada, Keita
Okada, Toyoji
Kamada, Hajime
Funding for this research was provided by:
The Ricoh Company, Ltd
Article History
Received: 3 July 2019
Accepted: 7 April 2020
First Online: 21 April 2020
Competing interests
: The authors declare no competing interests.