Funding for this research was provided by:
National Natural Science Foundation of China (81772991, 81572466, 81372564, 81772884)
Received: 22 April 2020
Accepted: 13 August 2020
First Online: 20 August 2020
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee of Sun Yat-Sen University Cancer Center. The research was conducted according to all ethical standards, and written informed consent was obtained from all patients.
: Consent to publish was obtained from all authors.
: The authors declare that they have no competing interests.