Liu, Ahui
Li, Jie
Shen, Haofei
Zhang, Lili
Li, Qiuyuan
Zhang, Xuehong
Funding for this research was provided by:
The Innovation Fund Project for Colleges and Universities of Gansu Province (No. 2020B-012)
Article History
Received: 15 August 2022
Accepted: 13 December 2022
First Online: 17 December 2022
Declarations
:
: Ethical approval was obtained from the Ethics and Research Committee of the First Hospital of Lanzhou University, Lanzhou, Gansu, China. (No: LDYYSZLLKH2021-010); In our survey, all methods were carried out in accordance with relevant guidelines and regulations. Informed consent was waived by the Ethics and Research Committee of the First Hospital of Lanzhou University, for retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.