title: Development of a subaortic membrane after surgical closure of a membranous ventricular septal defect in an infant.
mesh_terms: D001024:Aortic Valve Stenosis / Q000151:congenital / Q000175:diagnosis / Q000209:etiology*; D004314:Down Syndrome / Q000150:complications; D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D006345:Heart Septal Defects, Ventricular / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007223:Infant; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology*