Zhang, Qing
Liu, Ye
Su, Longxiang
Chai, Wenzhao
Zhang, Hongmin
Wang, Xiaoting
Liu, Dawei
Article History
Received: 6 July 2020
Accepted: 5 January 2021
First Online: 22 January 2021
Ethics approval and consent to participate
: This study was approved by the Institutional Research and Ethics Committee of our hospital. Informed consent was waived based on the study’s retrospective, observational design, which preserved the confidentiality of personal information.
: Not applicable.
: The authors declare that they have no competing interests.