title: Clinically "silent" atrial septal defect: diagnosis by two-dimensional and Doppler echocardiography.
mesh_terms: D000328:Adult; D000368:Aged; D001775:Blood Circulation; D004452:Echocardiography / Q000379:methods*; D004562:Electrocardiography; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation; D011859:Radiography