Fu, Shihui
Ping, Ping
Wang, Fengqi
Luo, Leiming
Funding for this research was provided by:
Health Special Scientific Research Project of Chinese People’s Liberation Army (12BJZ34 and 14BJZ12)
Article History
Received: 14 September 2017
Accepted: 21 December 2017
First Online: 12 January 2018
Ethics approval and consent to participate
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: The authors have no competing interest.
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