Dou, Lei
Xu, Yanjiao
Chen, Gang
Li, Shunping
Article History
Received: 21 July 2022
Accepted: 14 June 2023
First Online: 4 July 2023
Declarations
:
: The study was approved by the Ethics Review Board of the School of Public Health, Shandong University (Reference No.20141002). The patients/participants were voluntary and provided written informed consent to participate in this study.
: The authors understand and agree to publish.
: The authors declare no competing interests.