A Prospective, Multi-center Clinical Study to Establish Multi-Cancer Early Detection Platform Through the Analysis of Whole Genome Sequencing of Circulating DNA in Cancer Patients and Healthy Volunteers

Inclusion Criteria: * Aged 19 years or older * Subjects who have been diagnosed with stages 1 to 4 of solid tumor or healthy volunteers who have scheduled a cancer screening examination * Subjects who have agreed to provide clinical information and blood samples * Subjects who have agreed for the storage and secondary use of residual blood samples for research * Subjects who have understood the study and are able to provide a written informed consent Exclusion Criteria: * Subjects who are not appropriate for the study because of intellectual disabilities or severe mental disorders * Subjects with a history of HIV, HTLV, or Syphilis infection * Subjects with primary site unknown cancer or synchronous or metachronous double primary cancers * Subjects who have diagnosed with any other malignant tumor within the past 5 years (except for cured non-melanoma skin cancer, in situ cancer, or thyroid cancer)