Funding for this research was provided by:
National Natural Science Foundation of China (81370749)
Text and Data Mining valid from 2018-08-13
Received: 13 May 2018
Accepted: 31 July 2018
First Online: 13 August 2018
Ethics approval and consent to participate
: Written informed consent was obtained from all patients and this study was approved by the Ethics Review Board of The First Affiliated Hospital of Anhui Medical University.
: Not applicable.
: The authors declare that they have no competing interests.
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