Left ventricular outflow obstruction in infancy and childhood.
D000293:Adolescent; D000367:Age Factors; D000790:Angiocardiography; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D005112:Extracorporeal Circulation; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000601:surgery; D006350:Heart Valve Prosthesis; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male