Cancer Ag 72-4:PrThr:Pt:Ser/Plas:Ord
cancer ag 72-4:prthr:pt:ser/plas:ord
Cancer Antigen 72-4:Presence or Threshold:To identify measures at a point in time:Serum/Plasma:Ordinal
cancer antigen 72-4:presence or threshold:to identify measures at a point in time:serum/plasma:ordinal