Funding for this research was provided by:
the Medical and Health Science and Technology Plan Project of Zhejiang Province (2018RC079)
the Science and Technology Key Project of Jinhua City (20163011)
the Science and Technology Project of Jinhua City (20164024)
the Science and Technology Project of Zhejiang Province (2017C37147)
Text and Data Mining valid from 2019-11-04
Received: 29 May 2019
Accepted: 23 October 2019
First Online: 4 November 2019
Ethics approval and consent to participate
: This study was approved by the ethics committee of Jinhua Municipal Central Hospital. The requirement for informed consent was waived because the data were handled anonymously.
: Not applicable.
: The authors declare that they have no competing interests.