Zhang, Lianqun
Zhou, Shengli
Guo, Ertao
Chen, Xiaoqi
Yang, Jun
Li, Xiuling
Article History
Received: 18 January 2020
Revised: 31 March 2020
Accepted: 3 June 2020
First Online: 12 June 2020
Compliance with ethical standards
: The ethics committee of Henan Provincial People’s Hospital approved the study.
: The authors declare that they have no conflict of interest.