Kunikata, Hiroshi
Ida, Tomoaki
Sato, Kota
Aizawa, Naoko
Sawa, Tomohiro
Tawarayama, Hiroshi
Murayama, Namie
Fujii, Shigemoto
Akaike, Takaaki
Nakazawa, Toru
Article History
Received: 26 October 2016
Accepted: 4 January 2017
First Online: 7 February 2017
Competing interests
: The authors declare no competing financial interests.