Shen, Bing
Dong, Lin
Xiao, Shuhai http://orcid.org/0000-0003-4655-2663
Lang, Xianguo
Huang, Kangjun
Peng, Yongbo
Zhou, Chuanming
Ke, Shan
Liu, Pengju
Article History
Received: 20 April 2015
Accepted: 27 November 2015
First Online: 7 January 2016
Competing interests
: The authors declare no competing financial interests.