F little y super little b Ag:PrThr:Pt:RBC^Donor:Ord
f little y super little b ag:prthr:pt:rbc^donor:ord
Fy^b Antigen:Presence or Threshold:To identify measures at a point in time:Erythrocytes^Donor:Ordinal
fy^b antigen:presence or threshold:to identify measures at a point in time:erythrocytes^donor:ordinal