Murakami, Koji
Hamai, Satoshi
Okazaki, Ken
Ikebe, Satoru
Higaki, Hidehiko
Shimoto, Takeshi
Nakashima, Yasuharu
Article History
Received: 2 June 2017
Accepted: 16 March 2018
First Online: 20 March 2018
Compliance with ethical standards
:
: All authors declare that they have no conflicts of interest.
: The study protocol was approved by the Institutional Review Board of Kyushu University (IRB number 24-166). 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 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.