Luo, Chenglong
Song, Yiman
Liu, Yiyang
Wang, Rui
Gao, Jianbo
Yue, Songwei
Ding, Changmao
Article History
Received: 12 September 2021
Accepted: 27 January 2022
First Online: 2 February 2022
Declarations
:
: Our retrospective study was approved by the institutional review board of the First Affiliated Hospital of Zhengzhou University, the witten informed consent of all patients was waived, and the whole study was performed by the World Medical Association guidelines and Declaration of Helsinki, revised in 2000 in Edinburgh.All patient data were analyzed anonymously.
: Not applicable.
: The authors declare that they have no competing interests.