Fig. 1.
Binding of affinity-purified anti-FVIII IgG to FVIII by ELISA.
Unfractionated IgG (closed triangles) and the corresponding affinity-purified anti-FVIII IgG (open squares) were tested at similar concentrations for their ability to bind to insolubilized FVIII. (A) High-responder patient with hemophilia A (HA); (B) intravenous immunoglobulin (IVIg).