Funding for this research was provided by:
Zhejiang Provincial Commission of Health and Family Planning (2018RC080)
Jinhua municipal central hospital (JY2017-2-3)
Text and Data Mining valid from 2020-01-03
Received: 19 October 2019
Accepted: 20 December 2019
First Online: 3 January 2020
Ethics approval and consent to participate
: The protocol of this study was reviewed and approved by the ethics committee of Jin Hua municipal central hospital and written informed consent was provided by all patients.
: Not applicable.
: None of the authors have any potential conflicts associated with this research.