Funding for this research was provided by:
Shanghai Science and Technology Development Foundation (19MC1911000)
the Youth Project of National Nature Science Funding of China (81700195)
Received: 13 September 2020
Accepted: 2 December 2020
First Online: 5 January 2021
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Fudan University Shanghai Cancer Center (Shanghai Cancer Center Ethical Committee, permission number 050432–4-1212B). Additional patient consent for this retrospective study was not required.
: Not applicable.
: The authors declare that they have no competing interests.