Norovirus:Prid:Pt:Stool:Nom:Microscopy.electron
norovirus:prid:pt:stool:nom:microscopy.electron
Norovirus:Presence or Identity:To identify measures at a point in time:Stool:Nominal:Microscopy.electron
norovirus:presence or identity:to identify measures at a point in time:stool:nominal:microscopy.electron