C4 nephritic factor:MCnc:Pt:Ser/Plas:Qn
c4 nephritic factor:mcnc:pt:ser/plas:qn
C4 nephritic factor:Mass Concentration:To identify measures at a point in time:Serum/Plasma:Quantitative
c4 nephritic factor:mass concentration:to identify measures at a point in time:serum/plasma:quantitative