title: Symptomatic atrial septal defect in infants.
mesh_terms: D000790:Angiocardiography; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006326:Heart Auscultation; D006333:Heart Failure / Q000209:etiology; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D008297:Male; D010100:Oxygen / Q000097:blood; D011014:Pneumonia / Q000209:etiology; D011651:Pulmonary Artery / Q000503:physiopathology
chemical_list: D010100:Oxygen