Araki, Katsuya
Yagi, Naoto
Nakatani, Rie
Sekiguchi, Hiroshi
So, Masatomo
Yagi, Hisashi
Ohta, Noboru
Nagai, Yoshitaka
Goto, Yuji
Mochizuki, Hideki
Article History
Received: 12 May 2016
Accepted: 5 July 2016
First Online: 29 July 2016
Competing interests
: The authors declare no competing financial interests.