Funding for this research was provided by:
Building Funds for Advanced Disciplines from the Peking Union Medical College &Chinese Academy of Medical Science (2021-EFT-Z-008)
Received: 30 January 2022
Accepted: 12 July 2022
First Online: 26 July 2022
: Not applicable. No human subjects were involved in this study. All data used in this study did not contain any personal information. The Chinese Center for Disease Control and Prevention Institutional Review Boards approve the whole study.
: Not applicable.
: All authors declared that they have no competing interests.