Thank you very much.
I greatly appreciate your testimony and your comments today.
With the amount of procedures that you have done currently--and I'm asking this of the physicians who are with us today--I'm just wondering, have there been some negatives? I know that you've talked about some of the negative impacts, but how much of this has actually helped the patients?
People with MS have a condition. They get this procedure. How many of them have had zero....