Images in clinical medicine. Ostium secundum atrial septal defect.
Lang
R M
RM
University of Chicago, IL 60637, USA.
Marcus
R H
RH
D000328:Adult; D017548:Echocardiography, Transesophageal; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging*; D006801:Humans