Dai, Ping
Harada, Yoshinori
Miyachi, Hitoshi
Tanaka, Hideo
Kitano, Satsuki
Adachi, Tetsuya
Suzuki, Tomoyuki
Hino, Hitoshi
Takamatsu, Tetsuro
Article History
Received: 27 October 2014
Accepted: 18 November 2014
First Online: 4 December 2014
Competing interests
: The authors declare no competing financial interests.