Funding for this research was provided by:
National Natural Science Foundation of China (81773218, 81703009, 81472773)
Received: 25 April 2019
Accepted: 4 September 2019
First Online: 10 October 2019
Ethics approval and consent to participate
: All procedures performed on patient tumor samples in this study were in accordance with the ethical standards of the Institute Ethics Committee and with the 1964 Helsinki declaration and its later amendments of comparable ethical standards.
: Not applicable.
: The authors declare that they have no competing interests.