plasma c-peptide immunoreactivity ( cpr ) was measured in 18 fasting subjects with three different commercial kits ( ria-mat c-peptide , byk-mallinckrodt : ria-gnost - h c-peptide , hoechst-behring : human c-peptide radioimmunoassay kit , novo ) .
C0086418
human
C0006558
c-peptide