Clinical Research Directory

Inclusion Criteria: 1.40-74 years old; 2.Able to provide a written informed consent; 3.Willing to comply with all part of the protocol procedures. Exclusion Criteria: 1. With cancer-associated clinical symptoms or suspected of cancer within 30 days prior to screen; 2. Have definite contraindications of cancer screening examination and diagnostic procedures; 3. Unable to comply with the protocol procedures; 4. Personal history of cancer, diagnosed within the 3 years prior to expected enrollment date; 5. Have received or are undergoing curative cancer treatment within three years prior to recruitment. Adjuvant endocrine therapy for cancer is not an exclusion criterion; 6. Recipients of anti-tumor therapy within 30 days prior to screen; 7. Pregnancy or lactating women; 8. Recipients of organ transplant or prior bone marrow transplant or stem cell transplant; 9. Recipients of blood transfusion within 7 days prior to screen; 10. With autoimmune diseases; 11. Have an acute infection or inflammation or uncontrolled chronic infection within 14 days prior to blood draw; 12. Unsuitable for this trial determined by the researchers.