Duck hepatitis virus 2 Ag:PrThr:Pt:XXX:Ord
duck hepatitis virus 2 ag:prthr:pt:xxx:ord
Duck hepatitis virus 2 Antigen:Presence or Threshold:To identify measures at a point in time:Not specified:Ordinal
duck hepatitis virus 2 antigen:presence or threshold:to identify measures at a point in time:not specified:ordinal