I don't remember. I don't want to venture a number. I'm not good at remembering numbers. I can't remember my phone number, so I won't go there.
But that's why we're doing these studies. When you have a controversy like this, and you have one group finding one thing and another group finding the other thing, you have to try to devise a very strict protocol. What's really great about these studies is the use of several diagnostic approaches that will be compared to determine whether (a) there's a problem with the anatomy, and (b) there's a problem with the blood flow, and trying to associate that with MS.