Katoh, Mitsuho http://orcid.org/0000-0002-0695-6594
Tatsuta, Haruki http://orcid.org/0000-0001-8847-8874
Tsuji, Kazuki http://orcid.org/0000-0002-2027-8582
Funding for this research was provided by:
URUMA Scientific Research Fund, Okinawa, Japan
Japan Society for the Promotion of Science (15H04425, 15H02652, 16H04846, 16K14865)
A University of the Ryukyus Research Project Promotion Grant (Typical Research, Strategic Research Grant
Article History
Received: 27 November 2017
Accepted: 23 August 2018
First Online: 7 September 2018
Competing Interests
: The authors declare no competing interests.