Prospective evaluation of hemostatic system activation and thrombin potential in healthy pregnant women with and without factor V Leiden - Eichinger, S; Weltermann, A; Philipp, K; Hafner, E; Kaider, A; Kittl, E-M; Brenner, B; Mannhalter, C; Lechner, K; Kyrle, PA (Thromb Haemost, 1999)