Funding for this research was provided by:
Japan Society for the Promotion of Science (18K16530)
Received: 25 July 2019
Accepted: 16 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: The study participants were informed of the experiment, and permissions were obtained in a consent form before the measurements. All procedures in this study were approved by the Ethical Review Board of the Chiba University Graduate School of Medicine.
: A written informed consent for publication was obtained.
: The authors declare that they have no competing interests. Chiba University has filed a provisional patent application covering the aspects of this manuscript. TN, TN, HH, and SO are listed as inventors.