Okabe, Toshitaka
Kido, Takehiko
Kimura, Taro
Yakushiji, Tadayuki
Asukai, Yu
Shimazu, Suguru
Saito, Jumpei
Oyama, Yuji
Igawa, Wataru
Ono, Morio
Ebara, Seitaro
Yamashita, Kennosuke
Yamamoto, Myong Hwa
Amemiya, Kisaki
Isomura, Naoei
Ochiai, Masahiko
Article History
Received: 23 April 2019
Accepted: 25 February 2020
First Online: 10 March 2020
Competing interests
: The authors declare no competing interests.