Li, Jing
Zhao, Qun
Ge, Xueke
Song, Yuzhi
Tian, Yuan
Wang, Shuoshuo
Liu, Ming
Qiao, Xueying http://orcid.org/0000-0003-3251-0833
Article History
Received: 11 October 2020
Accepted: 9 March 2021
First Online: 17 March 2021
Declarations
:
: The retrospective collection and analysis of data were approved by Review Board of the Fourth Hospital of Hebei Medical University (2017MEC004). Patients were not required to give informed consent to the study because the analysis used anonymous clinical data that were obtained after each patient agreed to treatment by written consent.
: Not applicable.
: The authors declare that there are no conflict of interests.