the purpose of the study was to compare the discharge of radioactive iodine from the thyroid after po administration of perchlorate with and without supplement of 2 mg potassium iodine ( kl ) in 42 euthyroid controls , 26 patients with nontoxic goiter , 39 patients with thyrotoxicosis treated with radioactive iodine , and 39 patients with pendred 's syndrome .
C0040132
thyroid
C0271829
pendred 's syndrome