Assertion: valve's position | /r/HasProperty | aortic
Facets:
Source sentences:
text: At 10 years, and beyond, the pericardial valve did function well in the aortic position, as reported by various authors., Several pericardial valves were explanted from the aortic position at 16, 17 and 18 years following implantation, and a few valves between 21 and 23 years.