Xu, Yunjian
Liu, Fang
Han, Guomin
Cheng, Beijiu
Funding for this research was provided by:
National Natural Science Foundation of China (31470465, 31640057)
Science and Technology Major Project of Anhui Province (15czz03119)
Article History
Received: 8 November 2017
Accepted: 24 January 2018
First Online: 2 February 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.