Nitrogen.nonprotein:SCnc:Pt:Ser/Plas:Qn
nitrogen.nonprotein:scnc:pt:ser/plas:qn
Nitrogen.nonprotein:Substance Concentration:To identify measures at a point in time:Serum/Plasma:Quantitative
nitrogen.nonprotein:substance concentration:to identify measures at a point in time:serum/plasma:quantitative