Yokoi, Katsuyuki http://orcid.org/0000-0002-4760-0420
Nakajima, Yoko
Yasui, Toshihiro
Yoshino, Makoto
Yoshikawa, Tetsushi
Kurahashi, Hiroki
Ito, Tetsuya
Article History
Received: 9 November 2020
Revised: 15 December 2020
Accepted: 23 December 2020
First Online: 4 February 2021
Conflict of interest
: The authors declare that they have no conflict of interest.