title: How leaky is that mitral valve? Simplified Doppler methods to measure regurgitant orifice area.
authors.forename: J D
authors.initials: JD
authors.lastname: Thomas
mesh_terms: D004452:Echocardiography; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging* / Q000628:therapy; D014463:Ultrasonography / Q000379:methods