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 [Mass Ratio] in Urine --2nd specimen post XXX challenge
c peptide/creatinine [mass ratio] in urine --2nd specimen post xxx challenge