von Willebrand factor.activity actual/Normal:RelRto:Pt:PPP^Control:Qn:IA
von willebrand factor.activity actual/normal:relrto:pt:ppp^control:qn:ia
von Willebrand factor (vWf).activity actual/normal in Control Platelet poor plasma by Immunoassay
von willebrand factor (vwf).activity actual/normal in control platelet poor plasma by immunoassay