likewise , calcium deficiency reduced the calcium concentration in serum ( 56 % ) , femur ( 40 % ) , pancreas ( 16 % ) , muscle ( 43 % ) , testis ( 19 % ) and brain ( 24 % ) , and elevated the zinc concentration in femur ( 22 % ) , although the zinc concentration in serum , pancreas , muscle and testis remained unaffected .
C0006104
brain
C0086045
concentration