Funding for this research was provided by:
National Natural Science Foundation of China (31640056, 31801250)
Natural Science Foundation of Shaanxi Province (2016JM8052)
Key Research and Development Program of Shaanxi, China (2018SF-258)
Scientific and Technical Innovatory Project of Tangdu Hospital (2017LCYJ001)
Article History
Received: 10 October 2018
Accepted: 14 December 2018
First Online: 4 January 2019
Compliance with ethical standards
: The present study was reviewed and approved by the Ethics Committee of Animal and Medicine of the Tangdu Hospital of The Fourth Military Medical University (approval identification: TDLL-2013051) and was conducted in accordance with the guidelines from the Committee on the Use of Live Animals in Teaching and Research of the Tangdu Hospital of The Fourth Military Medical University.
: The authors declare that they have no conflict of interest.