Kitagawa, Yuichi
Suzue, Fumiya
Nakanishi, Takayuki
Fushimi, Koji
Seki, Tomohiro
Ito, Hajime
Hasegawa, Yasuchika
Article History
Received: 21 August 2019
Accepted: 12 December 2019
First Online: 3 January 2020
Competing interests
: The authors declare no competing interests.