title: Regurgitation of all four cardiac valves detected by Doppler echocardiography.
mesh_terms: D000328:Adult; D000368:Aged; D001022:Aortic Valve Insufficiency / Q000175:diagnosis*; D004452:Echocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000175:diagnosis*; D011665:Pulmonary Valve Insufficiency / Q000175:diagnosis*; D014262:Tricuspid Valve Insufficiency / Q000175:diagnosis*