Li, Yu
Wang, Ke
Xie, Hui
Xu, Chun-Ling
Funding for this research was provided by:
Special Project of Scientific and Technological Basis of the Ministry of Science and Technology of the People?s Republic of China (2006FY120100)
Article History
Accepted: 21 January 2019
First Online: 31 January 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest. This article has not been published before and is not concurrently being considered for publication elsewhere.
: No specific permits were required for the described studies.
: The authors certify that the work carried out in this research followed the principles of ethical and professional conduct.