title: An aged case with ventricular septal defect of the persistent common atrioventricular canal type with special references to its spontaneous closure and a histological study of the conduction system.
mesh_terms: D000368:Aged; D001022:Aortic Valve Insufficiency / Q000209:etiology; D001344:Autopsy; D005260:Female; D006329:Heart Conduction System / Q000473:pathology*; D006345:Heart Septal Defects, Ventricular / Q000150:complications / Q000473:pathology*; D006801:Humans; D008943:Mitral Valve / Q000473:pathology; D008944:Mitral Valve Insufficiency / Q000209:etiology; D014261:Tricuspid Valve / Q000473:pathology