I'll say that we don't think prescribing practices are as good as they should be in Canada. We do think there's room to improve there. Our view is that you should address it directly with the physician versus looking for the payer to be policing that through the back door.
The other thing—and as a clinician, you'll understand this clearly—is that the evidence on these drugs is on a population level. The evidence tells you what the average person's response will be to a drug, and there are all kinds of distributions around that. We feel generally that more choice is better than less where you can afford it and where it can be made available. That's an approach we would take to that question, but clearly we need to do a better job at getting evidence built into our formularies.
There are different ways of doing that. We looked at the managed route. We do have closed formularies. We do all that stuff, but we let the consumer decide what is best for them.