1. Dean, School of Public Health, University of Texas Houston, Texas
2. Professor and Chairman, Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
3. Professor of Neurology and Pathology, University of Southern California school of Medicine, Los Angeles County/U.S.C. Medical Center, Los Angles, California
4. Professor of Medicine, Duke University Medical Center, Durham, North Carolina
5. Associate Dean and Professor of Epidemiology, Johns Hopkins University School of Hygiene and Public Health Baltimore, Marryland
6. Executive Director, Chicago Health Research Foundation Chicago, Illinois