RT Journal Article SR Electronic T1 Dual atrial pathology as an incidental finding on thoracic computed tomography and echocardiography JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 508 OP 508 DO 10.1136/hrt.80.5.508 VO 80 IS 5 A1 J M COTTON A1 A BROWN A1 M J MONAGHAN YR 1998 UL http://heart.bmj.com/content/80/5/508.abstract AB