Guo, Jianping
Zheng, Peilin
Wang, Ran
Tan, Xiangzhou
Yang, Weimin
Xiao, Shihan
Chen, Zhikang
Article History
Accepted: 23 July 2020
First Online: 28 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: As this study is based on a publicly available database without identifying patient information, informed consent was not needed.