when fetal , maternal , and adult nonpregnant sheep serum sephadex g-200 pools were gel filtered on sephadex g-50 in 1 mol/liter acetic acid to separate bound from free igf , and igf-ii was measured by rra , approximately 50 % of the circulating igf-ii was associated with this igf-ii/man-6-p receptor in fetal serum compared to 7 % in maternal serum and 3 % in adult nonpregnant serum .
C0037657
igf
C0021666
igf-ii