title: A pathological study of ventricular septal defects.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006345:Heart Septal Defects, Ventricular / Q000145:classification / Q000150:complications / Q000473:pathology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn