Contribution of factor VII genotype to activated FVII levels. Differences in genotype frequencies between northern and southern European populations - Bernardi, F; Arcieri, P; Bertina, RM; Chiarotti, F; Corral, J; Pinotti, M; Prydz, H; Samama, M; Sandset, PM; Strom, R; Garcia, VV; Mariani, G (Arterioscler Thromb Vasc Biol, 1997)