{"code":"C64357","name":"Negative Control","terminology":"ncit","version":"26.09d","conceptStatus":"DEFAULT","leaf":false,"active":true,"synonyms":[{"name":"NEGATIVE CONTROL","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"CDISC"},{"name":"Negative Control","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"NCI"},{"name":"Negative Control","type":"Preferred_Name","typeCode":"P108"},{"name":"Negative_Control","termType":"PT","type":"FULL_SYN","typeCode":"P90","source":"SeroNet"}],"definitions":[{"definition":"A comparator that is expected to yield a negative result, to establish a reference baseline.","code":"P325","type":"ALT_DEFINITION","source":"CDISC"},{"definition":"A control sample where a negative result is expected, to help correlate a positive result with the variable being tested.","code":"P97","type":"DEFINITION","source":"NCI"}],"properties":[{"code":"P322","type":"Contributing_Source","value":"CDISC"},{"code":"P322","type":"Contributing_Source","value":"SeroNet"},{"code":"P366","type":"Legacy Concept Name","value":"Negative_Control"},{"code":"P106","type":"Semantic_Type","value":"Conceptual Entity"},{"code":"P207","type":"UMLS_CUI","value":"C1947986"}]}