Liu, Yi-yang
Liang, Pan
Ji, Jiang
Chen, Kui-sheng
Li, Li-ming
Gao, Jian-bo
Yong, Liu-liang
Funding for this research was provided by:
National Natural and Science Fund of China (81671682)
Article History
Received: 29 September 2019
Accepted: 15 January 2020
First Online: 5 February 2020
Ethics approval and consent to participate
: The study protocol was approved by the institutional review board and due to the retrospective nature of the study, the informed consent requirement was abandoned.
: Not applicable.
: The authors declare that they have no competing interests.