title: The second heart sound in ventricular septal defect.
mesh_terms: D000293:Adolescent; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis / Q000503:physiopathology*; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D008297:Male; D010701:Phonocardiography