Furukawa, Yoshinori
Nagashima, Ken
Nakatsubo, Shun-ichi
Yoshizaki, Izumi
Tamaru, Haruka
Shimaoka, Taro
Sone, Takehiko
Yokoyama, Etsuro
Zepeda, Salvador
Terasawa, Takanori
Asakawa, Harutoshi
Murata, Ken-ichiro
Sazaki, Gen
Article History
Received: 27 September 2016
Accepted: 19 January 2017
First Online: 6 March 2017
Competing interests
: The authors declare no competing financial interests.