Figure 1From: Salvage therapy with high dose Intravenous Immunoglobulins in acquired Von Willebrand Syndrome and unresponsive severe intestinal bleeding Von Willebrand factor ristocetin cofactor (VWF:RCo) residual activity of normal pooled plasma incubated with different dilutions of plasma from the patient with acquired von Willebrand syndrome (VWS) (Patient plasma) and plasma from another patient with acquired VWS containing neutralizing anti-VWF autoantibodies (positive control). Back to article page