%0 Journal Article %A Carl Heneghan %A Jeffrey Aronson %T Extending anticoagulation treatment for unprovoked venous thromboembolism %D 2020 %R 10.1136/bmjebm-2019-111252 %J BMJ Evidence-Based Medicine %P 184-186 %V 25 %N 5 %U https://ebm.bmj.com/content/ebmed/25/5/184.full.pdf