Assertion: pulmonary embolism | /r/CreatedBy | embolus
Facets:
value: in the legs
type: LOCATION
Source sentences:
text: Because pulmonary embolism is caused by an embolus formed elsewhere in the body (generally in the legs), and because it is often difficult to detect presence of a venous embolus prior to the onset of complications such as a pulmonary embolism, the prevention of these emboli is necessary in the prevention of PE.