Assertion: pulmonary embolism | /r/HasProperty | the leg veins
Facets:
value: mostly
type: DEGREE
Source sentences:
text: Pulmonary embolism is a common and dangerous condition that occurs when blood clots (deep venous thrombosis, or, DVT) break loose and travel from where the clots formed—mostly the leg veins (or, uncommonly, veins elsewhere)—to the pulmonary arteries, which conduct blood from the heart to the lungs.