Funding for this research was provided by:
National Natural Sciences Grants China (81500083, 81572159, 81871771)
Received: 13 November 2019
Revised: 9 February 2020
Accepted: 24 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: All experiments in the current study were approved by the ethics and technological committees of the General Hospital of the Air Force (2010-0182).
: Not applicable.
: The authors declare that they have no competing interests.