Received: 27 June 2018
Accepted: 15 October 2018
First Online: 22 October 2018
: All experimental and animal management procedures were approved by the Animal Welfare and Ethics Committees of Yangzhou University and complied with the guidelines of the institutional administrative committee and ethics committee of laboratory animals (SYXK [Su] 2016–0020).
: Not applicable.
: The authors declare that they have no competing interests.
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