An immunoradiometric assay for human factor Vlll/von Willebrand factor (VIII:vWF) using a monoclonal antibody that defines a functional epitope - Goodall, A H; Jarvis, J; Chand, S; Rawlings, E; O’Brien, D P; McGraw, A; Hutton, R; Tuddenham, E G (Br J Haematol, 1985)