Funding for this research was provided by:
Jiangsu Provincial Key Research and Development Fundation (BE2016608)
Text and Data Mining valid from 2018-08-24
Received: 28 May 2018
Accepted: 7 August 2018
First Online: 24 August 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of Nanjing Drum Tower Hospital affiliated to Medical School of Nanjing University.
: All the patients in this study have given their informed consent for the article to be published.
: The authors declare that they have no competing interests.
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