Yanbei, Ren
Dongdong, Ma
Yun, Liu
Ning, Wu
Fengping, Qin
Article History
Received: 18 July 2022
Accepted: 12 January 2023
First Online: 23 January 2023
Declarations
:
: The study was approved by the Research Ethics Committee of Qilu Hospital of Shandong University (KYLL-202107–031). Written informed consent was obtained from all participants. The procedures were conducted per the ethical standards of the 1964 Declaration of Helsinki.
: Not applicable.
: There is no conflict of interest in this study.