Funding for this research was provided by:
Taishan Scholar Foundation of Shandong Province (ts201712098)
he National Key Research and Development Program of China (2017YFC0113202)
the Key Support Program of Natural Science Foundation of Shandong Province (ZR2019LZL017)
Received: 10 October 2020
Accepted: 11 February 2021
First Online: 18 February 2021
Ethics approval and consent to participate
: This study was approved by the Research Ethics Board of the Shandong Cancer Hospital. Written informed consent was waived by the Institutional Review Board.
: Not applicable.
: The authors declare that they have no competing interests.