Ji, Hong
Cao, Renhai
Yang, Yunlong
Zhang, Yin
Iwamoto, Hideki
Lim, Sharon
Nakamura, Masaki
Andersson, Patrik
Wang, Jian
Sun, Yuping
Dissing, Steen
He, Xia
Yang, Xiaojuan
Cao, Yihai
Article History
Received: 6 December 2013
Accepted: 7 August 2014
First Online: 17 September 2014
Competing interests
: The authors declare no competing financial interests.