in contrast , serum total igf and igf-i , while not correlated with serum gh levels , were significantly correlated in all animals with body weight ( r = .87 and r = .82 , respectively , p less than .01 ) and tail length ( r = .61 and r = .62 , respectively , p less than .01 ) .
C0037657
igf
C0021665
igf-i