Thank you.
Mr. Niedre, you talked about your e-learning module on concussions, and it sounds like you have a very good, comprehensive list of people who have helped developed it. I know that part of this is return-to-play guidelines. Those were developed a while ago and they're always being revised. Is there any stage of it or have they incorporated any requirement at some level of concussion where there has to be a formal medical evaluation before they can return to play?