You talked about training. I'm really interested, Peter, in retraining. I'll use hockey as an example, because that's the area I know the best.
My son had a coach when he was five years old who is still coaching. Would I be right in assuming that there are regular retraining sessions? What we know about concussions now—and a lot of this falls on the coach—is so much greater than what we knew 12 years ago, when my son started playing hockey.
How much retraining is there? Is it yearly? Does it even occur? Can you speak for Hockey Canada as to whether there's constant retraining?