Bleeding prophylaxis for major surgery in patients with type 2 von Willebrand disease with an intermediate purity factor VIII-von Willebrand factor concentrate (Haemate-P) - Michiels,J.J.; Berneman,Z.N.; Van Der Planken,M.; Schroyens,W.; Budde,U.; Van Vliet,H.HDM. (Blood Coagul Fibrinolysis, 2004)