Igai, Hitoshi http://orcid.org/0000-0002-5916-8209
Kamiyoshihara, Mitsuhiro
Yoshikawa, Ryohei
Ohsawa, Fumi
Yazawa, Tomohiro
Article History
Received: 24 September 2018
Accepted: 4 November 2018
First Online: 10 November 2018
Compliance with ethical standards
:
: Hitoshi Igai has no conflict of interest. Mitsuhiro Kamiyoshihara has no conflict of interest. Ryohei Yoshikawa has no conflict of interest. Fumi Ohsawa has no conflict of interest. Tomohiro Yazawa has no conflict of interest.