Funding for this research was provided by:
National Natural Science Foundation of China (81270060)
Received: 29 March 2018
Accepted: 10 December 2018
First Online: 8 January 2019
: The care, maintenance, and handling of the animals followed the requirements of the NIH guidelines for experiments with animals. The animal experiment was approved by the Ethics Committee of West China Second Hospital of Sichuan University.
: Not applicable
: The authors declare that they have no competing interests.
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