PT - JOURNAL ARTICLE AU - Carl Heneghan AU - Jeffrey Aronson TI - Extending anticoagulation treatment for unprovoked venous thromboembolism AID - 10.1136/bmjebm-2019-111252 DP - 2020 Oct 01 TA - BMJ Evidence-Based Medicine PG - 184--186 VI - 25 IP - 5 4099 - http://ebm.bmj.com/content/25/5/184.short 4100 - http://ebm.bmj.com/content/25/5/184.full SO - BMJ EBM2020 Oct 01; 25