Study observation:Find:Pt:Aorta ascending^Fetus:Nar:US
study observation:find:pt:aorta ascending^fetus:nar:us
Study observation:Finding:To identify measures at a point in time:Aorta ascending^Fetus:Narrative:Ultrasound
study observation:finding:to identify measures at a point in time:aorta ascending^fetus:narrative:ultrasound