Funding for this research was provided by:
the Medical and Health Science and Technology Plan Project of Zhejiang Province (2018263197)
the Youth Research Fund of Jinhua Hospital of Zhejiang University (JY2017205)
Text and Data Mining valid from 2018-07-21
Received: 11 May 2018
Accepted: 10 July 2018
First Online: 21 July 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of Jinhua Hospital of Zhejiang University (No. 2017101003). The requirement for informed consent was waived because the data were anonymous.
: Not applicable.
: The authors declare that they have no competing interests.
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