E Ag^post transfusion reaction:PrThr:Pt:RBC:Ord
e ag^post transfusion reaction:prthr:pt:rbc:ord
E Antigen^post transfusion reaction:Presence or Threshold:To identify measures at a point in time:Erythrocytes:Ordinal
e antigen^post transfusion reaction:presence or threshold:to identify measures at a point in time:erythrocytes:ordinal