Assertion: fourth aortic arch | /r/CapableOf | form complete vascular ring
Facets:
value: around the trachea
type: LOCATION
value: around esophagus
type: LOCATION
Source sentences:
text: Double aortic arch Double aortic arch represents a persistence of both right and left fourth aortic arches that form a complete vascular ring around the trachea and esophagus (Figure 13).