Ishijima, A.
Minamihata, K.
Yamaguchi, S.
Yamahira, S.
Ichikawa, R.
Kobayashi, E.
Iijima, M.
Shibasaki, Y.
Azuma, T.
Nagamune, T.
Sakuma, I.
Article History
Received: 21 October 2016
Accepted: 31 January 2017
First Online: 23 March 2017
Competing interests
: The authors declare no competing financial interests.