Adhesion of blood platelets is inhibited VCL, a recombinant fragment (leucine504to lysine728) of von Willebrand factor - Sixma, J J; Ijsseldijk, M JW; Hindriks, G; Van Zanten, H-G; Gorecki, M; Panet, A; Garfinkel, L I; De Groot, P G (Arterioscler Thromb Vase Biol, 1996)