Oshima, Yasushi
Doi, Toru
Kato, So
Taniguchi, Yuki
Matsubayashi, Yoshitaka
Nakajima, Koji
Oguchi, Fumihiko
Oka, Hiroyuki
Hayashi, Naoto
Tanaka, Sakae
Article History
Received: 4 November 2019
Accepted: 11 February 2020
First Online: 25 February 2020
Competing interests
: The authors declare no competing interests.