in a radioimmunoassay utilizing 125i-msa iii-2 and a purified antibody subpopulation , the human somatomedins ( somatomedin a , insulin-like growth factor i and ii ) showed weak , but significant cross-reactivity : insulin-like growth factor ii was 10 % as potent as msa ii .
C0037657
somatomedins
C0021666
msa