Liu, Yan
Liu, Nan
Cheng, Mengjiao
Peng, Xin
Huang, Junxuan
Ma, Jinxiang
Wang, Peixi http://orcid.org/0000-0001-5177-1479
Funding for this research was provided by:
National Natural Science Foundation of China (81872584, 81472941)
Natural Science Foundation of Guangdong Province (2016A030313138)
Article History
Received: 19 October 2020
Accepted: 20 April 2021
First Online: 12 May 2021
Declarations
:
: The study was approved by the ethics committee of Health Research Specialty Committee of Guangdong Sociological Society. Written informed consent was obtained from each study participant before investigation. When the participant is a child (under 16 years of age), written informed consent was obtained from the parent or guardian.
: Not Applicable.
: The authors declare that they have no competing interests.