That's another really good question. We often look at prevention in terms of rules of the game, equipment and then intrinsic risk factors. These are factors that change risks that are internal to that person. Some of the intrinsic risk factors would be related to their awareness of space, coordination, head and neck control, and that kind of thing.
Then, of course, there's the equipment and the rules of the game. We do some evaluation in that area. There's been some work done in the area of looking at mouthguards and risk in youth ice hockey. Our systematic review from Berlin showed potentially a non-significant protective risk of about 19%, with a need for further research. We've actually been able to compare that, because in Alberta, because of the lack of literature, there wasn't necessarily rule enforcement around the wearing of mouthguards. Within our youth concussion studies, we've been able to study the kids who have and who have not worn mouthguards. You can stay tuned for the results of that.