RT Journal Article SR Electronic T1 Atrial flutter with 1:1 conduction JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 414 OP 414 DO 10.1136/heart.88.4.414 VO 88 IS 4 A1 J L Tan A1 W S Teo YR 2002 UL http://heart.bmj.com/content/88/4/414.abstract AB