Masaoka, Yasuyuki
Kawasaki, Yoichi
Kikuoka, Ryo
Ogawa, Atsushi
Esumi, Satoru
Wada, Yudai
Ushio, Soichiro
Kitamura, Yoshihisa
Sendo, Toshiaki
Article History
Received: 9 April 2020
Accepted: 12 June 2020
First Online: 7 July 2020
Ethics approval and consent to participate
: No ethical approval has been obtained for this study.
: Not applicable.
: The authors declare that they have no competing interests.