Li, Runqing
Liu, Junjie
Li, Yushan
Wang, Quanxian
Article History
Received: 12 August 2020
Accepted: 8 January 2021
First Online: 20 January 2021
Ethics approval and consent to participate
: This study was approved by the institutional ethics committee of the Third Affiliated Hospital of Zhengzhou University. Written informed consent was obtained from all participants before conducting the study.
: Not applicable.
: The authors declare that they have no competing interests.