 Both of those are autoimmune, which needs to be approached in a different type of way. But you can also have some nutritional deficiencies that occur. You can have a thyroiditis, which is common as a postpartum situation, where that really can throw things off quite severely. That needs to be recognized. And there's a lot of women who have postpartum depression where it's an inflamed thyroid, which needs to be treated differently. And then you can also have thyroid cancer.