Fujioka, J.
Doi, A.
Okuyama, D.
Morikawa, D.
Arima, T.
Okada, K. N.
Kaneko, Y.
Fukuda, T.
Uchiyama, H.
Ishikawa, D.
Baron, A. Q. R.
Kato, K.
Takata, M.
Tokura, Y.
Article History
Received: 30 April 2015
Accepted: 16 July 2015
First Online: 20 August 2015
Competing interests
: The authors declare no competing financial interests.