Female gender and resistance to ac tivated protein C (FV:Q506) as potential risk factors for thrombosis after elective hip arthroplasty. - Svensson, PJ; Benoni, G; Fredin, H; Bjorgell, O; Nilsson, P; Hedlund, U; Ny-lander, G; Bergqvist, D; Dahlbäck, B (Thromb Hemost, 1997)