Li, Yingqian
Takahashi, Yoshimasa
Fujii, Shin-ichiro
Zhou, Yang
Hong, Rongjian
Suzuki, Akari
Tsubata, Takeshi
Hase, Koji
Wang, Ji-Yang
Article History
Received: 21 September 2015
Accepted: 25 January 2016
First Online: 3 March 2016
Competing interests
: The authors declare no competing financial interests.