Shimakawa, Ginga http://orcid.org/0000-0002-8557-2096
Murakami, Akio
Niwa, Kyosuke
Matsuda, Yusuke
Wada, Ayumi
Miyake, Chikahiro http://orcid.org/0000-0002-2426-2377
Article History
Received: 2 April 2018
Accepted: 18 May 2018
First Online: 29 May 2018
Compliance with ethical standards
:
: The authors have no conflict of interest to declare.