RT Journal Article SR Electronic T1 A combination of persistent left superior vena cava and a large secundum atrial septal defect in a 34 year old woman JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 406 OP 406 DO 10.1136/heart.85.4.406 VO 85 IS 4 A1 THEODORA ZAGLAVARA A1 J R L HAMILTON A1 ANTOINETTE KENNY YR 2001 UL http://heart.bmj.com/content/85/4/406.abstract AB