Funding for this research was provided by:
Zhejiang Province Public Welfare Technology Application Research Project (LGF18H160018)
Department of Health of Zhejiang Province (2018KY304)
Text and Data Mining valid from 2019-05-28
Received: 13 December 2018
Accepted: 8 May 2019
First Online: 28 May 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Ethics Committee of Zhejiang Cancer Hospital, and was carried out in accordance with the Declaration of Helsinki. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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