Funding for this research was provided by:
Natural Science Foundation of Zhejiang Province (Y17H030008)
Text and Data Mining valid from 2019-12-01
Received: 9 July 2019
Accepted: 17 December 2019
First Online: 26 December 2019
Ethics approval and consent to participate
: This study was performed according to the guidelines laid down in the Declaration of Helsinki and all procedures involving human subjects were approved by the institutional review and ethics committee of Zhejiang Hospital (2017-c-11).
: Not applicable.