Ethics approval and consent to participate
Cancer
CANCER
The study was done in accordance with Declaration of Helsinki and the Good Clinical Practice Guideline. The protocol and all amendments were approved by the institutional review board or independent ethics committee of each study site: Peking University Cancer Hospital (ethical approval number: 2017YW26); Fudan University Shanghai Cancer Center (ethical approval number: 1712179–4-1811A); Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (ethical approval number: 2019105); Fujian Medical University Cancer Hospital (ethical approval number: 2019–040-01). All patients provided written informed consent.