My sense is that there is not a lot of evidence that looks at that question currently. I'm sure you may be able to design a study. I'm not sure what it would look like, but right now on the table again the question may be looking at two complementary.... These are complementary strategies, I would say, that need to go together, and that would be how we would look at it.
On April 23rd, 2013. See this statement in context.