Yoshida, Tadashi
Yamazaki, Osamu
Hayashi, Matsuhiko
Article History
Received: 5 March 2018
Accepted: 11 March 2018
First Online: 16 March 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 research committee at which the studies were conducted (IRB Approval Number 20130388) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from an individual participant included in the study.