Chen, Fu Mei
Wang, Ke
Xu, Kang Li
Wang, Li
Zhan, Tian Xiang
Cheng, Fei
Wang, Hao
Chen, Zuo-Bing
Gao, Liang
Yang, Xiao Feng
Funding for this research was provided by:
The National Natural Science Foundation of China (81470052)
Article History
Received: 7 December 2019
Accepted: 28 February 2020
First Online: 13 March 2020
Ethics approval and consent to participate
: This study was approved by the ethics committees of the two medical centers. The requirement for obtaining informed consent from patients was waived because the data sets were anonymous.
: Not applicable.
: The authors declare that they have no competing interests.