Influence of long term oral anticoagulants upon prothrombin fragment 1 + 2, thrombin-antithrombin III complex and D-Dimer levels in patients affected by proximal deep vein thrombosis - Elias, A; Bonfils, S; Daoud-Elias, M; Gauthier, B; Sié, P; Boccalon, H; Boneu, B (Thromb Haemost, 1993)