Fukaya, R.
Okimoto, Y.
Kunitomo, M.
Onda, K.
Ishikawa, T.
Koshihara, S.
Hashimoto, H.
Ishihara, S.
Isayama, A.
Yui, H.
Sasagawa, T.
Article History
Received: 8 October 2014
Accepted: 31 August 2015
First Online: 20 October 2015
Competing interests
: The authors declare no competing financial interests.