Yoshiko, Akito
Yamauchi, Koun
Kato, Takayuki
Ishida, Koji
Koike, Teruhiko
Oshida, Yoshiharu
Akima, Hiroshi
Article History
Received: 21 March 2018
Accepted: 22 May 2018
First Online: 9 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.