I would say two things.
First, that information is based on some preliminary studies that have been done, as well as on some of the surveys that have been done with people. That is what they have identified most often as being the most important or as occurring most often. We always have to be careful with the statistics. As we said, statistics are kind of difficult sometimes because we need to do a lot more research.
Also, on the other side, part of one of the projects that we're funding is that we don't consider there to be a single, well-approved definition used by everybody--