Assertion: pericarditis | /r/CreatedBy | metastatic tumors
Facets:
value: usually
type: DEGREE
Source sentences:
text: Pericarditis with a large effusion (serous, serous-hemorrhagic or hemorrhagic) is usually caused by metastatic tumors, most often by lung or breast cancer, sarcoma (especially melanoma), leukemia or lymphoma.