RT Journal Article SR Electronic T1 Imaging of atrial septal defects: echocardiography and CT correlation JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1441 OP 1453 DO 10.1136/hrt.2010.205732 VO 97 IS 17 A1 Johri, Amer M A1 Rojas, Carlos A A1 El-Sherief, Ahmed A1 Witzke, Christian F A1 Chitty, David W A1 Palacios, Igor F A1 Passeri, Jonathan J A1 King, Mary Etta E A1 Abbara, Suhny YR 2011 UL http://heart.bmj.com/content/97/17/1441.abstract AB