title: Doppler prediction of transvalvular gradient and stenotic orifice area.
authors: D
authors: D
authors: Loyd
authors: P
authors: P
authors: Ask
authors: B
authors: B
authors: Wranne
mesh_terms: D001783:Blood Flow Velocity; D004452:Echocardiography; D006351:Heart Valves / Q000473:pathology*; D006801:Humans; D008433:Mathematics