Wang, Yan-Rong
Chang, Shao-hua
Ma, Xiao-Min
Li, Ji-Ying
Zhang, Rui-Xia
Fang, Jian-Qun
Article History
Received: 28 February 2021
Accepted: 22 November 2021
First Online: 11 December 2021
Declarations
:
: The protocol for this study was approved by the Ethics Committee of the General Hospital of Ningxia Medical University. All participants provided written informed consent after receiving a complete description of the study. Informed consent was obtained from a parent or guardian for participants under 16 years old.
: Not applicable.
: All authors declared no conflict of interest.