Araki, Katsuya
Yagi, Naoto
Ikemoto, Yuka
Yagi, Hisashi
Choong, Chi-Jing
Hayakawa, Hideki
Beck, Goichi
Sumi, Hisae
Fujimura, Harutoshi
Moriwaki, Taro
Nagai, Yoshitaka
Goto, Yuji
Mochizuki, Hideki
Article History
Received: 23 January 2015
Accepted: 3 November 2015
First Online: 1 December 2015
Competing interests
: The authors declare no competing financial interests.