Okay. I have a very quick question.
We were talking before, Dr. Tator, about the studies you've done on brains. I know your sample size is not really large, but have you found any cases of athletes who had had a number of concussions but who had no symptoms? There are people who recover. They'll have multiple concussions but no long-term clinical presentations. Was there any correlation you found where you'd have less of these tau proteins in the people who had less symptoms, or more? Did you see some of these in people who really had no long-term symptoms?