Wang, Shuihua
Du, Sidan
Atangana, Abdon
Liu, Aijun
Lu, Zeyuan
Funding for this research was provided by:
National Nature Science of China (61271231)
Article History
Received: 25 October 2015
Revised: 15 February 2016
Accepted: 23 February 2016
First Online: 11 March 2016
Compliance with ethical standards
:
: We have no conflicts of interest to disclose with regard to the subject matter of this paper.