Funding for this research was provided by:
National Natural Science Foundation of China (31570951)
Received: 19 June 2019
Revised: 13 August 2019
Accepted: 26 August 2019
First Online: 23 September 2019
Ethics approval and consent to participate
: All animal procedures performed in this study were reviewed and approved by the Animal Experimental Ethical Inspection of Fourth Military Medical University (No. 12023) and were performed in accordance with the guidelines of the International Association for the Study of Pain.
: Not applicable.
: The authors declare that they have no competing interests.