Received: 3 January 2019
Accepted: 14 May 2019
First Online: 21 May 2019
Ethics approval and consent to participate
: The Zhengzhou University institutional research committee approved our study, and all participants provided written informed consent for medical research prior to initial treatment, and all experiments were performed in accordance with relevant guidelines and regulations.
: All the material came from our cancer center, and the publish consent have been obtained from all the patients.
: The authors declare that they have no competing interests.
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