Yao, Zi-Shuo
Mito, Masaki
Kamachi, Takashi
Shiota, Yoshihito
Yoshizawa, Kazunari
Azuma, Nobuaki
Miyazaki, Yuji
Takahashi, Kazuyuki
Zhang, Kuirun
Nakanishi, Takumi
Kang, Soonchul
Kanegawa, Shinji
Sato, Osamu
Article History
Received: 24 March 2014
Accepted: 19 September 2014
First Online: 26 October 2014
Competing interests
: The authors declare no competing financial interests.