Li, Datao
Zhang, Ruhong
Zhang, Qun
Xu, Zhicheng
Xu, Feng
Li, Yiyuan
Chen, Xia
Article History
Received: 8 February 2020
Accepted: 26 March 2020
First Online: 16 April 2020
Compliance with Ethical Standards
:
: The authors have no conflicts of interest to disclose.
: The study design was approved by the appropriate ethics review board. The operations were performed by the same doctor, and the study followed the Declaration of Helsinki for ethical.
: All study participants provided informed consent.