There are a couple of things. In prescribing and the practice of prescribing there's some provincial oversight to that under the practice of medicine and veterinary medicine. There's this division of the sale of drugs and the use of drugs that occurs across this country, which is unique.
In terms of the drugs that go in feed, yes, you're right. Antimicrobials and other drugs go in feed because that is the most logical way to treat a large number of animals, either in feed or in water. We have rules around drugs in animal feed. We also authorize drugs to be used in feed, so we have rules within the food and drug regulations to address that. We also have rules in the feed regulations to address that. I think we have coverage on that from a regulatory perspective for feed, which is quite unique, in terms of the use.