RT Journal Article SR Electronic T1 Pulmonary vein isolation was better than antiarrhythmic drugs for symptomatic atrial fibrillation JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 16 OP 16 DO 10.1136/ebm.11.1.16 VO 11 IS 1 YR 2006 UL http://ebm.bmj.com/content/11/1/16.abstract AB