Diagnosis of Multiple Cancer and Monitoring of Minimal Residual Tumors After Treatment Using Blood and High-Sensitivity Genetic Analysis Techniques

Inclusion Criteria

• •Age ≥ 19 years
• •Voluntarily agreed to participate and provided informed consent
• •Able to donate blood without health risks
• •Underwent or is scheduled to undergo surgery or chemotherapy for therapeutic purposes for cancer (for cancer group)
• •Diagnosed with one of the following cancers: ovarian, lung, pancreatic, colorectal, esophageal, breast, bladder, kidney, or gastric cancer
• •Control group: asymptomatic individuals with gallstones or benign polyps, or subjects undergoing routine health screenings
• •Control group must have confirmed benign findings through imaging (ultrasound, CT, LDCT, colonoscopy)