Funding for this research was provided by:
Grant-in-Aid for Scientific Research, Japan
Article History
Received: 26 June 2018
Accepted: 4 October 2018
First Online: 13 October 2018
Ethics approval and consent to participate
: Participants were informed of the experimental procedures and possible risks involved in this study, and written informed consent was subsequently obtained. The study was approved by the Ethics Committee for Human Experiments at Ritsumeikan University, Japan.
: All participants gave written informed consent for publication after a complete explanation of this study.
: The authors, Daichi Sumi, Chihiro Kojima, Nobukazu Kasai, and Kazushige Goto, declare that they have no competing interests.
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