von Willebrand factor multimers:PrThr:Pt:PPP:Ord
von willebrand factor multimers:prthr:pt:ppp:ord
von Willebrand factor multimers:Presence or Threshold:To identify measures at a point in time:Platelet poor plasma:Ordinal
von willebrand factor multimers:presence or threshold:to identify measures at a point in time:platelet poor plasma:ordinal