Assertion: tumor | /r/CapableOf | access as tumor
Facets:
value: in lung
type: LOCATION
value: in the brain
type: LOCATION
Source sentences:
text: Diagnosing the type of tumor using ctDNA can reduce the need for getting a sample of the tumor tissue (tumor biopsy), which can be challenging when a tumor is difficult to access, such as a tumor in the brain or lung.