Ova & parasites^3rd specimen:Prid:Pt:Stool:Nom:Concentration
ova & parasites^3rd specimen:prid:pt:stool:nom:concentration
Ova & parasites^3rd specimen:Presence or Identity:To identify measures at a point in time:Stool:Nominal:Concentration
ova & parasites^3rd specimen:presence or identity:to identify measures at a point in time:stool:nominal:concentration