Lai, Wenjian
Wang, Wanxin
Li, Xiuwen
Wang, Hongqiong
Lu, Ciyong
Guo, Lan
Funding for this research was provided by:
National Natural Science Foundation of China (81761128030, 81903339)
Natural Science Foundation of Guangdong Province (2019A1515011091)
Science and Technology Planning Project of Guangzhou (202102020136)
Article History
Received: 31 August 2021
Accepted: 7 January 2022
First Online: 15 January 2022
Declarations
:
: The authors declare no conflict of interest.
: The research was conducted in accordance with the Declaration of Helsinki, and obtained ethical approval from Sun Yat-sen University, School of Public Health Institutional Review Board (Ethics Number: L2017060).
: After the intention and procedure of this study had been fully explained in detail, written informed consent was obtained from each participating student and one of their parents or legal guardians.
: Not applicable.