Assertion: tumor | /r/HasProperty | defined
Facets:
value: by having no mutations in exons
type: OTHER
value: currently
type: TEMPORAL
Source sentences:
text: These tumors are currently defined by having no mutations in exons 9, 11, 13, and 17 of the KIT gene and exons 12, 14, and 18 of the PDGFRA gene.