That paper appears to discuss how iodine is absorbed and transported within the body, but not the long-term effects of it. Similarly, your italicized Hanford quote mentions acute effects from high doses, not long-term effects from low doses.<p>I certainly could be wrong, but you and the others replying to me do not seem to be doing a very good job distinguishing between short term, high-dose effects (which were pretty well known) and long term, low-dose effects (which seem to have taken a lot longer to figure out).