 Why is that? Are they not doing the proper blood tests? They're not doing the proper blood tests. They're not reading them correctly. Okay. You know, blood tests are extremely accurate, but the numbers for the blood tests are very, very specific on what they should be. And having an understanding of those. And then there are 35 different blood tests you can do for the thyroid. So there's an awful lot of different types of functions that they're looking at, and people...