Funding for this research was provided by:
General Hospital of People’s Liberation Army (No. 2018FC-WJFWZX-2-19)
Text and Data Mining valid from 2019-12-01
Received: 8 August 2019
Accepted: 27 November 2019
First Online: 13 December 2019
Ethics approval and consent to participate
: This study received ethical approval from the Institutional Review Board of the Naval Medical University (CHEC2015–037), and written informed consent was obtained from all participants.
: Not applicable.
: The authors declare no conflicts of interest. The sponsors did not participate in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.