Funding for this research was provided by:
National Natural Science Foundation of China (81702831, 81772975)
the National Natural Science Foundation of China (81702762, 81470337)
Received: 30 August 2018
Accepted: 13 January 2019
First Online: 4 February 2019
Ethics approval and consent to participate
: All animal maintenance and procedures were carried in accordance with the National Institute of Health Guide for the Care and Use of Laboratory Animals, with the approval of the Animal Research Committee of Dalian Medical University.
: Not applicable.
: The authors have declared that no competing interest exists.
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