 Those are the basic things that we do. And according to that, then, we go on ahead and do other blood tests. We might do, you know, there are a lot of different blood tests. Then it's the autoimmune. Yes, there's an autoimmune panel if we have a suspicion that there is an autoimmune disease. It's one of the things that you have to determine as you're dealing with the thyroid. Is it just a hypothyroid, a hyperthyroid?