Kihara, Hidemichi
Kim, David M.
Nagai, Masazumi
Nojiri, Toshiki
Nagai, Shigemi
Chen, Chia-Yu
Lee, Cliff
Hatakeyama, Wataru
Kondo, Hisatomo
Da Silva, John
Article History
Received: 8 October 2017
Revised: 24 March 2018
Accepted: 1 April 2018
First Online: 2 July 2018
Competing interests
: The authors declare no competing interests.