Daio, Takeshi
Bayer, Thomas
Ikuta, Tatsuya
Nishiyama, Takashi
Takahashi, Koji
Takata, Yasuyuki
Sasaki, Kazunari
Matthew Lyth, Stephen
Article History
Received: 8 January 2015
Accepted: 8 June 2015
First Online: 2 July 2015
Competing interests
: The authors declare no competing financial interests.