Jiang, Nan
Huo, Ling-ling
Zhang, Zeng-zhi
Huang, Yi-qing
Li, Yu-hua
Wang, Rui
Guo, Yi
Qi, Fei
Li, Shan-peng
Funding for this research was provided by:
Shandong Federation of Social Sciences (2021-ZXJK-32)
Article History
Received: 20 July 2023
Accepted: 26 February 2024
First Online: 5 March 2024
Declarations
:
: The study was carried out in accordance with relevant guidelines and regulations. Informed consent was obtained from all the participants. The study was approved by the Institutional Review Board of Qingdao Municipal Center for Disease Control and Prevention, with project number 2021-ZXJK-32.
: Not applicable.
: The authors declare no competing interests.