Funding for this research was provided by:
National Natural Science Foundation of China (31570939, 81701856)
the Key Research and Development Program of Shaanxi (2018SF-039)
Young Talent fund of University Association for Science and Technology in Shaanxi, China (20170402)
Text and Data Mining valid from 2020-02-13
Received: 19 August 2019
Revised: 7 January 2020
Accepted: 4 February 2020
First Online: 13 February 2020
Ethics approval and consent to participate
: All animal experiments were approved by the Committees of Animal Ethics and Experimental Safety of the Air Force Medical University and carried out in accordance with the approved guidelines.
: Not applicable.
: The authors declare that they have no competing interests.