Funding for this research was provided by:
the Jiangsu Qinglan Project Foundation (JX2161015018)
the Foundation of the Priority Academic Program Development of Jiangsu Higher Education Institutions (JX 105318021010)
Text and Data Mining valid from 2018-08-29
Received: 4 March 2018
Accepted: 14 August 2018
First Online: 29 August 2018
Ethics approval and consent to participate
: Ethical approval was obtained from an ethics committee at Nanjing Medical University (Institutional Review Board) (IRB; approval number PJ2015–007-01).
: Not applicable
: The authors declare that they have no competing interests.
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