Funding for this research was provided by:
National Natural Science Foundation of China (81560357, 81760397)
Received: 14 March 2020
Accepted: 7 May 2020
First Online: 6 June 2020
Ethics approval and consent to participate
: This retrospective study was approved by the Ethics Committee of The First Affiliated Hospital of Xinjiang Medical University. Informed consent was waived due to the retrospective nature of this study.
: Not applicable.
: The authors declare that they have no conflict of interest.