Assertion: retroperitoneal fibrosis | /r/RelatedTo | cancer
Facets:
value: in about eight percent of patients
type: OTHER
value: in approximately eight percent of cases
type: TEMPORAL
Source sentences:
text: Retroperitoneal fibrosis is associated with cancer in approximately eight percent of cases, but up to 70 percent of cases are idiopathic and have no known cause.
text: Retroperitoneal fibrosis is associated with cancer in about eight percent of patients.