Xiong, Jie
Wang, Guangying
Cheng, Jun
Tian, Miao
Pan, Xuming
Warren, Alan
Jiang, Chuanqi
Yuan, Dongxia
Miao, Wei
Article History
Received: 17 June 2015
Accepted: 28 September 2015
First Online: 21 October 2015
Competing interests
: The authors declare no competing financial interests.