RT Journal Article SR Electronic T1 Risk of fatal pulmonary embolism was 0.49 per 100 person-years after discontinuing anticoagulant therapy for venous thromboembolism JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 154 OP 154 DO 10.1136/ebm.13.5.154 VO 13 IS 5 YR 2008 UL http://ebm.bmj.com/content/13/5/154.abstract AB