Shan, Xiaoqiang
Charles, Daniel S.
Lei, Yinkai
Qiao, Ruimin
Wang, Guofeng
Yang, Wanli http://orcid.org/0000-0003-0666-8063
Feygenson, Mikhail
Su, Dong http://orcid.org/0000-0002-1921-6683
Teng, Xiaowei http://orcid.org/0000-0001-9547-7175
Article History
Received: 22 April 2016
Accepted: 27 September 2016
First Online: 15 November 2016
Competing interests
: The authors declare no competing financial interests.