Funding for this research was provided by:
National Natural Science Foundation of China (71473096)
Text and Data Mining valid from 2019-02-18
Received: 2 September 2018
Accepted: 1 February 2019
First Online: 18 February 2019
Ethics approval and consent to participate
: The research methods and investigation tools in this study were approved by the Ethics Committee of Tongji Medical College, Huazhong University of Science and Technology (IORG No: IORG0003571). The patient information was anonymized and deidentified before the analysis. The informed consent was obtained from all participants in written.
: Not applicable.
: The authors declare there are no competing interests.
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