age-related changes in the secretion rate of immunoreactive calcitonin against antiserum for human calcitonin ( ict ) from the thyroid gland were investigated in adult ( 4-5 months old ) and aged ( 24-29 months old ) male wistar rats anesthetized with 1.0-1.2 % halothane .
C0770558
human calcitonin
C0040132
thyroid gland