,
Takahashi, Nobumasa https://orcid.org/0000-0003-0758-6035
Sawabata, Noriyoshi
Kawamura, Masafumi
Ohtsuka, Takashi
Horio, Hirotoshi
Sakaguchi, Hirozo
Nakayama, Mitsuo
Yoshiya, Katsuo
Chida, Masayuki
Hoshi, Eishin
Article History
Received: 15 August 2018
Accepted: 15 January 2019
First Online: 19 February 2019
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exists.