An immunoradiometric assay for human factor VIII von Willebrand factor (VIII:VWF) using a monoclonal antibody based that defines a functional epitope - Goodall, AH; Jarvis, J; Chand, S; Rawlings, E; O’Brien, DP; McCraw, A; Hutton, R; Tuddenham, EGD (Br J Haematol, 1985)