Assertion: aorta's wall | /r/CapableOf | show muscular thickening
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Source sentences:
text: In addition to the symptoms of aortic stenosis, which may cause a patient to feel faint, weak, or lethargic, the wall of the left ventricle also may show muscular thickening because the ventricle must work harder to pump blood through the narrow valve opening into the aorta.