Norovirus genogroup II Ag:PrThr:Pt:Stool:Ord
norovirus genogroup ii ag:prthr:pt:stool:ord
Norovirus genogroup II Antigen:Presence or Threshold:To identify measures at a point in time:Stool:Ordinal
norovirus genogroup ii antigen:presence or threshold:to identify measures at a point in time:stool:ordinal