Kobayashi, Kensuke
Yamaura, Jun-ichi
Iimura, Soshi
Maki, Sachiko
Sagayama, Hajime
Kumai, Reiji
Murakami, Youichi
Takahashi, Hiroki
Matsuishi, Satoru
Hosono, Hideo
Article History
Received: 5 September 2016
Accepted: 24 November 2016
First Online: 22 December 2016
Competing interests
: The authors declare no competing financial interests.