Zhang, Meng
Liu, Meixin
Wang, Dawei
Wang, Yan
Zhang, Wenhua
Yang, Hanxu
Zhang, Junshuang
Li, Qiuyi
Guo, Zhenqing
Article History
Received: 24 December 2021
Accepted: 22 April 2022
First Online: 21 May 2022
Declarations
:
: The Ethics Committee of the Affiliated Hospital of Qingdao University has approved the study and waived the need for individual informed consent by formulating a declaration of no objection. All participants approved the study. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.