Well, it's a very good question and comment.
In fact, that's precisely why we are working with Neurological Health Charities Canada to undertake the Canadian study. We need to understand whether we are seeing better reporting of neurological conditions and that's driving up the numbers, or whether there are other underlying factors that we don't know about right now that are influencing rates of neurological conditions.
Unfortunately, we do not have good data in this country yet on many of these conditions. Therefore it's hard to answer the question you're asking, but we do need to answer it. We will know. We will have the answer to that question as the study finishes in 2013.