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