Thanks very much for that.
I have a follow-up question, if I might.
I can remember being a physician on the sidelines of my kids' rugby games. At one point, there was a really interesting tool for your phone. There were concussion guidelines that you go through. Obviously, there are multiple ways to help bystanders recognize concussions.
Are there any apps or things that you're aware of or that you guys are working on that are going to help that recognition? As you said, recognizing it, understanding it's part of the sport, is most important. What advice do you have for folks on the sidelines?