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