Inoue, A
Okamoto, K
Fujino, Y
Nakagawa, T
Muguruma, N
Sannomiya, K
Mitsui, Y
Takaoka, T
Kitamura, S
Miyamoto, H
Okahisa, T
Fujimori, T
Imoto, I
Takayama, T
Article History
Received: 24 June 2014
Revised: 17 September 2014
Accepted: 20 September 2014
First Online: 14 October 2014
Competing interests
: The authors declare no conflict of interest.