Long‐term risk of recurrent venous thromboembolism among patients receiving extended oral anticoagulant therapy for first unprovoked venous thromboembolism: A systematic review and meta‐analysis

Faizan Khan, Tobias Tritschler, Miriam Kimpton, Philip S. Wells, Clive Kearon, Jeffrey I. Weitz, Harry R. Büller, Gary E. Raskob, Walter Ageno, Françis Couturaud, Paolo Prandoni, Gualtiero Palareti, Cristina Legnani, Paul A. Kyrle, Sabine Eichinger, Lisbeth Eischer, Cecilia Becattini, Giancarlo Agnelli, Maria Cristina Vedovati, Geert‐Jan Geersing, Toshihiko Takada, Benilde Cosmi, Drahomir Aujesky, Letizia Marconi, Antonio Palla, Sergio Siragusa, Charlotte Bradbury, Sameer Parpia, Ranjeeta Mallick, Anthonie W.A. Lensing, Martin Gebel, Michael Grosso, Minggao Shi, Kednapa Thavorn, Brian Hutton, Grégoire Le Gal, Marc Rodger, Dean Fergusson