Kubo, Hidemasa
Murayama, Yasutoshi
Ogawa, Soichiro
Matsumoto, Tatsuya
Yubakami, Masayuki
Ohashi, Takuma
Kubota, Takeshi
Okamoto, Kazuma
Kamiya, Mako
Urano, Yasuteru
Otsuji, Eigo
Article History
Received: 3 November 2020
Accepted: 19 April 2021
First Online: 21 May 2021
Competing interests
: The authors declare no competing interests.