The R2464C missense mutation in the von Willebrand factor gene causes a novel abnormality of multimer electrophoretic mobility and falls into the subgroup of type 2 von Willebrand disease’unclassified’ - Lester, William A.; Guilliatt, Andrea M.; Enayat, M.Said; Rose, Peter; Hill, Frank G. H. (Thrombosis and Haemostasis, 2007)