Ovine progressive pneumonia virus Ab:PrThr:Pt:Milk:Ord
ovine progressive pneumonia virus ab:prthr:pt:milk:ord
Ovine progressive pneumonia virus Antibody:Presence or Threshold:To identify measures at a point in time:Milk:Ordinal
ovine progressive pneumonia virus antibody:presence or threshold:to identify measures at a point in time:milk:ordinal