Kondo, S
Wakae, K
Wakisaka, N
Nakanishi, Y
Ishikawa, K
Komori, T
Moriyama-Kita, M
Endo, K
Murono, S
Wang, Z
Kitamura, K
Nishiyama, T
Yamaguchi, K
Shigenobu, S
Muramatsu, M
Yoshizaki, T
Article History
Received: 26 April 2015
Revised: 27 July 2016
Accepted: 2 August 2016
First Online: 3 October 2016
Competing interests
: The authors declare no conflict of interest.