{"code":"C206454","name":"Cancer DNA to Total Tumor Tissue DNA Ratio Measurement","terminology":"ncit","version":"26.10d","conceptStatus":"DEFAULT","leaf":true,"active":true,"synonyms":[{"name":"cancer dna fraction","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"GDC","code":"VAR"},{"name":"cancer_dna_fraction","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"GDC","code":"VAR"},{"name":"Cancer DNA to Total Tumor Tissue DNA Measurement","termType":"SY","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Cancer DNA to Total Tumor Tissue DNA Ratio Measurement","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Cancer DNA to Total Tumor Tissue DNA Ratio Measurement","type":"Preferred_Name","typeCode":"P108"}],"definitions":[{"definition":"The determination of the ratio of cancer-derived DNA compared to total DNA in a tumor sample. The measurement may be expressed as a ratio, fraction or percentage.","code":"P97","type":"DEFINITION","source":"NCI"}],"properties":[{"code":"P322","type":"Contributing_Source","value":"GDC"},{"code":"P208","type":"NCI_META_CUI","value":"CL1928964"},{"code":"P106","type":"Semantic_Type","value":"Laboratory Procedure"}]}