the immunoreactive ( ir ) pth concentration in plasma ( 0.5-1.5 ng/ml ) was less than that measured in heat-treated and dialyzed 0.6 % nacl extracts of brain tissue ( 4.0-5.0 ng/g wet wt brain ) and much less than that present in pituitary extracts ( 20-40 ng/g pituitary gland ) .
C0032002
pituitary
C0032005
pituitary gland