Yokouchi, T.
Kanazawa, N.
Kikkawa, A.
Morikawa, D.
Shibata, K.
Arima, T.
Taguchi, Y.
Kagawa, F. http://orcid.org/0000-0002-1763-6799
Tokura, Y.
Article History
Received: 23 March 2017
Accepted: 17 August 2017
First Online: 11 October 2017
Competing interests
: The authors declare no competing financial interests.