Kojima, Kazutaka
Hashimoto, Masaji
Ubara, Yoshifumi
Article History
Received: 14 November 2017
Accepted: 20 February 2018
First Online: 8 March 2018
Compliance with ethical standards
:
: The authors report 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 at which the studies were conducted (IRB approval number 1379-B) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from individual participant included in this study.