ELECTROCARDIOGRAPHIC EVIDENCE OF LEFT-AXIS DEVIATION IN PATIENTS WITH DEFECTS OF THE ATRIAL SEPTUM OF THE SECUNDUM TYPE.
D054087:Atrial Septum; D002318:Cardiovascular Diseases; D004562:Electrocardiography; D006325:Heart Atria; D006343:Heart Septal Defects; D006344:Heart Septal Defects, Atrial; D006801:Humans
ELECTROCARDIOGRAPHY; HEART SEPTAL DEFECTS, ATRIAL