Yang, Zongqiang
Liu, Changhao
Niu, Ningkui
Tang, Jing
Shi, Jiandang
Wang, Zili
Ding, Huiqiang
Article History
Received: 4 January 2021
Accepted: 30 April 2021
First Online: 21 May 2021
Declarations
:
: The present study has been performed in accordance with the Declaration of Helsinki and was approved by the Ethics Committee of the General Hospital of Ning Xia Medical University (No.:2020–702). All methods were performed according to relevant guidelines. Informed consent was obtained from each patient’s guardian.
: Not applicable.
: The authors declare that they have no conflict of interest.