2,4 toluenediamine:MCnc:Pt:Urine:Qn
2,4 toluenediamine:mcnc:pt:urine:qn
2,4 toluenediamine:Mass Concentration:To identify measures at a point in time:Urine:Quantitative
2,4 toluenediamine:mass concentration:to identify measures at a point in time:urine:quantitative