Itoh, Shinichi
Endoh, Yasuo
Yokoo, Tetsuya
Ibuka, Soshi
Park, Je-Geun
Kaneko, Yoshio
Takahashi, Kei S.
Tokura, Yoshinori
Nagaosa, Naoto
Article History
Received: 20 February 2016
Accepted: 28 April 2016
First Online: 8 June 2016
Competing interests
: The authors declare no competing financial interests.