I have one other quick question.
We're studying innovation. I would imagine that one innovation in this issue is affordability.
Can you give us an idea, and maybe Dr. Wong-Rieger could give us an idea as well, of the costs of some of these drugs? Are they incredibly expensive? I just think about the commitments that were made in the health accords to have drug coverage, particularly in situations where people are paying astronomical prices. Can either of you give us a sense of what some of the costs are?