C peptide/Creatinine^2nd specimen post XXX challenge:MRto:Pt:Urine:Qn
c peptide/creatinine^2nd specimen post xxx challenge:mrto:pt:urine:qn
C peptide/Creatinine^2nd specimen post XXX challenge:Mass Ratio:To identify measures at a point in time:Urine:Quantitative
c peptide/creatinine^2nd specimen post xxx challenge:mass ratio:to identify measures at a point in time:urine:quantitative