Qiu, Xiuzhen
Xu, Xian-Yan
Chen, Xuncai
Wu, Yiyong
Guo, Huishi
Funding for this research was provided by:
the Natural Science Foundation of Guangdong Province (2015A030313750)
Article History
Received: 14 January 2018
Revised: 25 March 2018
Accepted: 17 April 2018
First Online: 8 May 2018
Compliance with ethical standards
: The authors declare that all individual participants from whom the serum samples were obtained gave informed consent, and the studies have been approved by the Shaoguan University Ethics Committee and have been performed in accordance with ethical standards.
: The authors declare that they have no conflict of interest.