Funding for this research was provided by:
National Natural Science Foundation of China (81570584)
Social development project of Jiangsu Province (BE2015685)
Medical Research Funding of PLA (AWS14C003)
Text and Data Mining valid from 2018-06-19
Received: 16 August 2017
Accepted: 7 June 2018
First Online: 19 June 2018
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Jinling Hospital, Medical School of Nanjing University. All participants consented to participate the study and the written informed consent was obtained from each subject.
: Not applicable.
: The authors declare that they have no competing interests.
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