Funding for this research was provided by:
National Natural Science Foundation of China (11675122)
Natural Science Foundation of Zhejiang Province (LY16H160046 and Y17H160051)
Text and Data Mining valid from 2018-08-13
Received: 16 June 2018
Accepted: 2 August 2018
First Online: 13 August 2018
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was approved by the Regional Ethics Committee of the First Affiliated Hospital of Wenzhou Medical University.
: Not applicable.
: The authors declare that they have no competing interests.
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