Platelet aggregation.ristocetin inhibitor:PrThr:Pt:PPP:Ord
platelet aggregation.ristocetin inhibitor:prthr:pt:ppp:ord
Platelet aggregation.ristocetin inhibitor:Presence or Threshold:To identify measures at a point in time:Platelet poor plasma:Ordinal
platelet aggregation.ristocetin inhibitor:presence or threshold:to identify measures at a point in time:platelet poor plasma:ordinal