No, I can't give you numbers, but I can tell you that some patients reject it as a possibility right out of hand, just like some reject the possibility of trying a medication to reduce their symptoms. There are some people right from the start who aren't interested. Using Dr. Brunet's analogy, you have to have a number of tools in the tool box, and that's one of them.
On March 4th, 2008. See this statement in context.