Guo, Yi
Liu, Di-yue
Wang, Yu-jia
Huang, Meng-jie
Jiang, Nan
Hou, Qiang
Feng, Bojunhao
Wu, Wen-yu
Wu, Yi-bo
Qi, Fei
Sun, Xin-ying
Article History
Received: 18 November 2022
Accepted: 20 March 2023
First Online: 6 April 2023
Declarations
:
: The authors declare no conflict of interest.
: The study was conducted in accordance with the ethical standards set forth in the Helsinki Declaration (1983). This investigation was approved by the Medical Ethics Committee of the Qingdao Center for Disease Control and Prevention, project number 2021-ZXJK-32.All measurements in this study were taken with the informed consent of the respondents.
: All authors have reviewed the manuscript and approved its publication.
: Not applicable.