It's a difficult question to answer as to who's ahead. There's a lot of research in this field. Certainly in terms of the volume or the amount of money spent, the U.S. is leading the pack in the research. They probably have more people diagnosed with PTSD as all the other countries together. There's been research going on in the U.K. as well. They've taken a slightly different tack. Australia has a lot of research going on in this area.
We have a subgroup of our overall collaborative work with the western countries, the western allies, to share some research in this area. As I mentioned, Dr. Pedlar is the person who actually deals with this and could speak to your committee at some point if you wanted more details.