VWF and pancreatitis: The pancreatitis activity score system(PASS) score, platelet(PLT) count, von Willebrand factor antigen(vWF:Ag), prothrombin time(PT), activated partial prothrombin time, fibrinogen, thrombin time, antithrombin III(ATIII), plasminogen, serum calcium(Ca) and D-dimer(D-D) were compared.