Yamashita, T.
Shimoyama, Y.
Haga, Y.
Matsuda, T. D.
Yamamoto, E.
Onuki, Y.
Sumiyoshi, H.
Fujimoto, S.
Levchenko, A.
Shibauchi, T.
Matsuda, Y.
Article History
Received: 16 May 2014
Accepted: 30 October 2014
First Online: 1 December 2014
Competing interests
: The authors declare no competing financial interests.