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)
You may not be if
Age \< 19 years
Patients with mental retardation or severe psychiatric disorders affecting informed consent
History of HIV, HTLV, or syphilis infection
History of other malignancy within 5 years (for cancer group)
No somatic mutation detected in tumor or pre-treatment cfDNA (for cancer group)
Control group with any past or current cancer diagnosis
Control group with high-grade adenoma, symptomatic gallstones/polyps, or recent (\<6 months) abdominal surgery
Pregnant or breastfeeding women
Any other reason deemed inappropriate by the investigator
Clareo Health | Diagnosis of Multiple Cancer and Monitoring of Minimal Residual Tumors After Treatment Using Blood and High-Sensitivity Genetic Analysis Techniques
