Assertion: liver cancer's doctor | /r/CapableOf | perform liver biopsies
Facets:
value: to look for early liver cirrhosis
type: PURPOSE
value: after two years
type: TEMPORAL
value: on patients without liver symptoms
type: TRANSITIVE-OBJECT
Source sentences:
text: Some doctors also perform liver biopsies on patients without liver symptoms after two years (or after a cumulative dose of 4 grams of methotrexate) to look for early liver cirrhosis.