RT Journal Article SR Electronic T1 Correction: atrial fibrillation and stroke; do anticoagulants help? (12 June, p 45) JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 60 OP 60 DO 10.1136/dtb.27.15.60 VO 27 IS 15 YR 1989 UL http://dtb.bmj.com/content/27/15/60.abstract AB In discussing the rate of stroke attributable to non-rheumatic AF in two British longitudinal studies, we said that it lay between 2 and 1300 per 1000 person years. This rate should have been between 2 and 13 per 1000 person years.