Katsube, Ryoichi
Noma, Kazuhiro
Ohara, Toshiaki
Nishiwaki, Noriyuki
Kobayashi, Teruki
Komoto, Satoshi
Sato, Hiroaki
Kashima, Hajime
Kato, Takuya
Kikuchi, Satoru
Tazawa, Hiroshi
Kagawa, Shunsuke
Shirakawa, Yasuhiro
Kobayashi, Hisataka
Fujiwara, Toshiyoshi
Funding for this research was provided by:
the Ministry of Education Culture, Sports, Science and Technology, Japan
the Ministry of Health, Labor and Welfare, Japan
Article History
Received: 31 August 2020
Accepted: 4 January 2021
First Online: 18 January 2021
Competing interests
: The authors declare no competing interests.