Takashima, Shinichiro
Usui, Soichiro
Inoue, Oto
Goten, Chiaki
Yamaguchi, Kosei
Takeda, Yusuke
Cui, Shihe
Sakai, Yoshio
Hayashi, Kenshi
Sakata, Kenji
Kawashiri, Masa-aki
Takamura, Masayuki
Article History
Received: 29 July 2020
Accepted: 29 December 2020
First Online: 15 January 2021
Competing interests
: The authors declare no competing interests.