Kondou, K.
Yoshimi, R.
Tsukazaki, A.
Fukuma, Y.
Matsuno, J. http://orcid.org/0000-0002-3018-8548
Takahashi, K. S.
Kawasaki, M.
Tokura, Y.
Otani, Y. http://orcid.org/0000-0001-8008-1493
Article History
Received: 11 September 2015
Accepted: 20 June 2016
First Online: 25 July 2016
Competing interests
: The authors declare no competing financial interests.