I'll just say a word, and then I'm going to ask Mr. Yeates to comment, because it's his area.
Drugs are subject to a pre-approval process. We do an assessment of them. We share information with other regulators around the world as well. We don't allow drugs onto the market that we're not comfortable with. We allow them with conditions that we think may be appropriate.
Can I ask Mr. Yeates to respond?