“CO09 | Long Term Effectiveness and Safety of Direct Oral Anticoagulants in Patients With Factor V Leiden and or Prothrombin Gene Mutation and Venous Thromboembolism: A Single Centre, Retrospective Cohort Study: I.M. Palumbo1, E. Valeriani1,2, A. Pannunzio1, S. Marucci3, D. Menichelli1, D. Pastori3,4, P. Pignatelli3 | 1Department of General Surgery and Surgical Specialty, Sapienza University of Roma; 2Department of Infectious Disease, Azienda Ospedaliero-Universitaria Policlinico Umberto I, Roma; 3Department of Clinical Internal, Anaesthesiologic and Cardiovascular Sciences, Sapienza University of Roma; 4IRCCS Neuromed, Pozzilli, Italy”. Bleeding, Thrombosis and Vascular Biology 4, no. s1 (October 22, 2025). Accessed April 29, 2026. https://www.btvb.org/btvb/article/view/213.