Yu, Pengfei
Du, Yian
Xu, Zhiyuan
Huang, Ling
Cheng, Xiangdong
Article History
Received: 16 October 2018
Accepted: 27 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: The study protocol was approved by the institutional ethics review board of Zhejiang Cancer Hospital. A written informed consent was obtained from each study participant.
: Not applicable.
: The authors declare that they have no competing interests.
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