That's a very interesting question. I think that leads to the challenging issue of evaluation in the area of health promotion. We are definitely working very hard in that area. We put a number of resources into it. I think methodologies related to evaluation continue to evolve. Some are challenging in the sense that we need longitudinal studies to track the impact that we're having. I think that we can certainly show the results of shorter-term interventions and indicate the impact that we're having in that way. But it's hard to develop those causal links between our interventions and the actual change in health outcomes. We continue to try to do that, but it's challenging.
On January 31st, 2008. See this statement in context.