Hatakeyama, Yutaka
Horino, Taro http://orcid.org/0000-0003-0695-7981
Nagata, Keitaro
Matsumoto, Tatsuki
Terada, Yoshio
Okuhara, Yoshiyasu
Article History
Received: 8 August 2017
Accepted: 26 March 2018
First Online: 9 April 2018
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exists.
: 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 23-15) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.