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