Seo, Naohiro
Shirakura, Yoshitaka
Tahara, Yoshiro
Momose, Fumiyasu
Harada, Naozumi
Ikeda, Hiroaki
Akiyoshi, Kazunari
Shiku, Hiroshi
Article History
Received: 26 April 2017
Accepted: 5 January 2018
First Online: 30 January 2018
Competing interests
: The authors declare no competing financial interests.