Assertion: anabolic steroid's use | /r/Causes | thickening
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Although the use of anabolic steroids can sometimes cause enlargement and thickening of the left ventricle, Schwarzenegger was born with a congenital genetic defect in which his heart had a bicuspid aortic valve, a condition that rendered his aortic valve with two cusps instead of three, which can occasionally cause problems later in life.