Proceedings: Critical outflow valve obstruction under the age of 1 year.
D001024:Aortic Valve Stenosis / Q000175:diagnosis*; D003490:Cyanosis / Q000209:etiology; D004417:Dyspnea / Q000209:etiology; D005260:Female; D006347:Heart Sounds; D006801:Humans; D007223:Infant; D008297:Male; D011666:Pulmonary Valve Stenosis / Q000175:diagnosis*