These are thyroperoxidase (TPO), thyroglobulin (Tg) and the TSH receptor. Other autoantigens, such as the Sodium Iodide Symporter (NIS) have also been described, but as yet have no diagnostic role ...
Two years later, the state voted to recommend salt containing 0.01% sodium iodide, which had "virtually no effect on its taste". By the autumn, iodised salt was distributed across the US ...