circadian and ultradian variations characterize plasma growth hormone ( gh ) in 40 boys and 10 girls of short stature , and 15 boys and girls of normal stature , 6-14 yr of age , living on a diurnal waking ( approximately 07:00 to approximately 22.00 ) , nocturnal resting routine .
C0037663
growth hormone
C0013336
short stature