Avian metapneumovirus Ab:PrThr:Pt:Ser:Ord
avian metapneumovirus ab:prthr:pt:ser:ord
Avian metapneumovirus Antibody:Presence or Threshold:To identify measures at a point in time:Serum:Ordinal
avian metapneumovirus antibody:presence or threshold:to identify measures at a point in time:serum:ordinal