Funding for this research was provided by:
Kaifeng Science and Technology Bureau Project (No. 110342)
Received: 8 October 2019
Accepted: 14 May 2020
First Online: 29 May 2020
Ethics approval and consent to participate
: All the tumor specimens and paratumor samples were collected with written informed consent in accordance with the Declaration of Helsinki and with the approval of the Ethical Committee of Henan University (No. 2017055, Date: 2017/05/10, Henan, China).
: Not applicable.
: All the authors declare that they have no competing interests.