Chen, Qian-xin
Yang, Yuan-zhong
Liang, Zhuo-zhi
Chen, Jia-li
Li, Yue-lin
Huang, Zi-yi
Weng, Zi-jin
Zhang, Xiao-fang
Guan, Jie-xia
Tang, Lu-ying
Yun, Jing-ping
Ren, Ze-fang http://orcid.org/0000-0002-7785-4704
Funding for this research was provided by:
National Natural Science Foundation of China (81773515, 81973115)
Science and Technology Planning Project of Guangdong Province (2019B030316002)
Article History
Received: 23 November 2020
Accepted: 1 February 2021
First Online: 18 February 2021
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: The study was approved by the ethics committee of School of Public Health, Sun Yat-sen University.
: All participants provided written informed consent.