Nishi, Toshihiko http://orcid.org/0000-0002-0638-3546
Mutsuga, Masato
Akita, Toshiaki
Narita, Yuji
Fujimoto, Kazuro
Tokuda, Yoshiyuki
Terazawa, Sachie
Ito, Hideki
Nishiwaki, Kimitoshi
Usui, Akihiko
Article History
Received: 16 March 2019
Accepted: 4 September 2019
First Online: 17 September 2019
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exists.