Pu, Zhaoxia
Wang, Yao
Zhang, Ying
Huang, Jing
Hong, Yurong
He, Huiliao
Liu, Chunmei
Chen, Shuyuan
Grayburn, Paul A.
Huang, Pintong
Article History
Received: 2 December 2014
Accepted: 12 February 2015
First Online: 10 March 2015
Competing interests
: The authors declare no competing financial interests.