Li, Qiuyuan
Liu, Ahui
Shen, Haofei
Zhang, Xuehong
Article History
Received: 15 August 2022
Accepted: 2 October 2022
First Online: 21 October 2022
Declarations
:
: This study has been approved by the Ethics Committee of the first Hospital of Lanzhou University. Because this study is a retrospective study, and the identity information of the participate has been hidden when collecting the data, the consent to participate is not applicable.
: Not applicable.
: The authors declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.