Funding for this research was provided by:
Key issues of logistical support department of the Central Military Commission (BWS16J010)
Received: 5 July 2017
Accepted: 17 January 2018
First Online: 15 February 2018
Ethics approval and consent to participate
: The study was approved by the Animal Care and Use Committee of the General Hospital of Shenyang Military Command.
: Not applicable.
: The authors declare that they have no competing interests.
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