Text and Data Mining valid from 2019-01-07
Received: 10 July 2018
Accepted: 28 November 2018
First Online: 7 January 2019
Ethics approval and consent to participate
: The present study was approved by the Ethic Committee of Zhejiang Cancer Hospital, and all participants gave written informed consent.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.
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