 Is arthritis a big issue for you with a lot of patients? Not as big of an issue as people like to see them. Arthritis essentially means inflammation of a joint. What we usually think about is osteoarthritis, which means the inflammation is coming from a degeneration of the bones. But if you take an x-ray or an MRI of anybody over 50 years old, they're going to have degeneration. It's gravity. You can't escape it. But