Funding for this research was provided by:
National Natural Science Foundation of China (81101490)
Text and Data Mining valid from 2019-04-08
Received: 6 August 2018
Accepted: 28 March 2019
First Online: 8 April 2019
Ethics approval and consent to participate
: The research protocols were approved by the Ethics Committee of Daping Hospital and the Research Institute of Surgery of the Third Military Medical University. The experiment followed the Helsinki declaration and signed informed consent was obtained from all participants.
: Not Applicable.
: The authors declare that they have no competing interests.
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