C little s super little a Ag:PrThr:Pt:Ser/Plas:Ord
c little s super little a ag:prthr:pt:ser/plas:ord
Cs^a Antigen:Presence or Threshold:To identify measures at a point in time:Serum/Plasma:Ordinal
cs^a antigen:presence or threshold:to identify measures at a point in time:serum/plasma:ordinal