tokens: These findings demonstrated that there can be an abnormal vWF ( RiCof less than vWF Ag ) even in type I vWD , coexisting with a complete set of vWF multimers ( platelet discordant ) ; that the abnormal vWF can be shown more clearly in platelets than in plasma or else in plasma after DDAVP infusion ; and that DDAVP normalizes the BT only in those patients with normal platelet levels of both vWF Ag and RiCof ( platelet normal ) . .