No epidemiological study is done by any one person. This and next slide just illustrate the number of people who are currently participating in the project, as well as the expertise that you need to keep a project like this going, ranging from epidemiologists to psychologists to neuropsychologists. We have an anthropologist who runs our project on a day-to-day basis and she's responsible for finding all of our subjects. We also have a statistician and a neurologist.