Kagawa, Fumitaka http://orcid.org/0000-0002-1763-6799
Oike, Hiroshi http://orcid.org/0000-0001-6866-7774
Koshibae, Wataru
Kikkawa, Akiko
Okamura, Yoshihiro
Taguchi, Yasujiro
Nagaosa, Naoto
Tokura, Yoshinori
Article History
Received: 11 January 2017
Accepted: 1 September 2017
First Online: 6 November 2017
Competing interests
: The authors declare no competing financial interests.