Assertion: tumor antigen | /r/HasProperty | useful
Facets:
value: in identifying tumor cells
type: OTHER
Source sentences:
text: Tumor antigens, because of their relative abundance in tumor cells are useful in identifying specific tumor cells.
text: Tumor antigens are useful tumor markers in identifying tumor cells with diagnostic tests and are potential candidates for use in cancer therapy.
text: Certain tumor antigens are thus used as tumor markers.