Prothrombin fragment F1 + 2 and thrombin-antithrombin III complex are useful markers of the hypercoagulable state in atrial fibrillation - Asakura, H; Hifumi, S; Jokaji, H; Saito, M; Kumabashiri, I; Uotani, C; Mori-shita, E; Yamzaki, M; Shibata, K; Mizuhashi, K (Blood Coagul Fibrinolysis, 1992)