Guo, Qingxiang
Li, Yongtao
Zhang, Chao
Huang, Zhi
Wang, Xin
Nie, Yongwei
Li, Yao
Liu, Yanhua
Yang, Shengyong
Xiang, Rong
Fan, Yan
Funding for this research was provided by:
the Project of Science and Technology Assistance in Developing Countries (KY201501006)
the National Natural Science Foundation of China (81470354)
the Natural Science Foundation of Tianjin (17JCQNJC13500)
Article History
Received: 25 October 2017
Accepted: 3 April 2018
First Online: 20 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.