A monoclonal antibody (B724) to von Willebrand factor recognizing an epitope within the Al disulphide loop (Cys509-Cys695) discriminates between type 2A and type 2B von Willebrand disease - Christophe, O; Rouault, C; Obert, B; Pietu, G; Meyer, D; Girma, J P (Br J Haematol, 1995)