title: Influence of structural and functional features of ventricular septal defect on frontal plane QRS axis of the electrocardiogram.
mesh_terms: D000293:Adolescent; D000328:Adult; D001794:Blood Pressure; D006332:Cardiomegaly; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000503:physiopathology*; D006801:Humans; D006984:Hypertrophy; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery; D012737:Sex Factors