Chen, Xueyan
Chen, Wenjun
Lu, Shaoyou
Tang, Zhi
Zhu, Zhou
Zhong, Weichuan
Kang, Li
Liao, Shicheng
Funding for this research was provided by:
Natural Science Foundation of Guangdong Province (2015A030313869)
Article History
Received: 15 April 2019
Revised: 17 June 2019
Accepted: 21 June 2019
First Online: 29 June 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The purpose of this study and the uses of urine samples were fully explained, and informed consent was obtained from the parents of the school children.
: The study involving human participants have been approved by the ethics committee of Shenzhen Center for Disease Control and Prevention.