Otsuka, Kenichiro http://orcid.org/0000-0003-1359-3143
Shimada, Kenei
Katayama, Hisashi
Nakamura, Haruo
Ishikawa, Hirotoshi
Takeda, Hisateru
Fujimoto, Kohei
Kasayuki, Noriaki
Yoshiyama, Minoru
Article History
Received: 8 July 2018
Accepted: 26 October 2018
First Online: 1 November 2018
Compliance with ethical standards
:
: The authors declare no conflict of interest.