Aortic valve area method:Prid:Pt:Aortic valve:Nar:*
aortic valve area method:prid:pt:aortic valve:nar:*
Aortic valve area method:Presence or Identity:To identify measures at a point in time:Aortic valve:Narrative:*
aortic valve area method:presence or identity:to identify measures at a point in time:aortic valve:narrative:*