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 Unsp challenge (U) [Mass ratio]
c peptide/creatinine 2nd specimen post unsp challenge (u) [mass ratio]