Assertion: prostate cancer's stage | /r/HasProperty | based on test
Facets:
Source sentences:
text: The stage is based on tests described in Tests to Diagnose and Stage Prostate Cancer, including the blood PSA level and prostate biopsy results.
text: The clinical stage is based on the results of the urologist's physical examination of the patient's prostate (including a digital rectal exam (DRE)) and any other tests done prior to definitive treatment (i.e., surgery or radiation).