 He already exhibited the memory loss features much earlier, and it kind of coincided with his movement problem. And so that's why I think it tends to be more of the neurodegenerative change of Lewy body dementia. Now, that being said, now, Parkinson's patients can typically work fairly well. I mean, we had Michael J. Fox, for instance, who was even on the movie set doing fairly well and trying to work as an actor.