That's definitely a possibility. Our work doesn't look specifically at those linkages. We're looking at impacts of pesticides on bees directly. This new framework that was put in place earlier in 2013 to look at the impact of pesticides on bees is helping us do a better job of looking at that aspect.
With respect to the linkages in terms of weakening the immune system of bees and making them more susceptible to impacts from pests and diseases, there's definitely a possibility, but certainly that's not an area that we work in specifically.