Funding for this research was provided by:
Jiangsu Youth Medical Talents Project (QNRC2016310)
Text and Data Mining valid from 2019-01-05
Received: 11 September 2018
Accepted: 17 December 2018
First Online: 5 January 2019
Ethics approval and consent to participate
: This study was performed in accordance with the Declaration of Helsinki and approved by the Ethics Committee of Jiangsu University. All participants signed an informed consent.
: Not applicable
: The authors declare that they have no competing interests.
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