Thank you very much, Mr. Chair.
Hopefully I'll get to both of the doctors, but what I'd like to start off with, Dr. Schneider, is the issue of diagnosis of concussion. It's a sensitive issue. So many factors need to be considered and there has to be a lot more research done.
I don't know if you can explain to us where you think the most immediate challenges or hurdles are, breakthroughs that we need to get to, for understanding the issue of diagnosis.