Li, Ke
Xu, Huan
Wang, Suixiang
Qin, Pengzhe
Liang, Boheng
Funding for this research was provided by:
The Key Project of Medicine Discipline of Guangzhou (2021-2023-12, 2021-2023-12, 2021-2023-12, 2021-2023-12, 2021-2023-12)
Basic Research Project of Key Laboratory of Guangzhou (2021BRP004, 2021BRP004, 2021BRP004, 2021BRP004, 2021BRP004)
Article History
Received: 13 October 2021
Accepted: 8 April 2022
First Online: 15 April 2022
Declarations
:
: The study protocol was approved by the Ethics Committee of Guangzhou Center for Disease Control and Prevention. No consent was required as registry data with no personal identifiers was used. These data were either public or available for research upon request without permission. Data used in this study does not contain personal information. The participating registry has given their consent. The study was performed in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.