Xu, Hankun
Wu, Xiaoqian
Dou, Yingfei
Zheng, Wei
Article History
Received: 9 July 2021
Accepted: 30 July 2021
First Online: 16 August 2021
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of Ethics committee of YIDU Central Hospital and Shandong First Medical University, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare no competing interests.