1. Professor Emeritus, School of Dentistry, University of Minnesota and Independent Oral Health Research Consultant, Bethesda, MD 20814, and formerly Director, Division of Clinical Research and Health Promotion, National Institute of Dental and Craniofacial Research, National Institutes of Health
2. Clinical Professor, School of Dental Medicine, University at Buffalo and Independent Oral Care Industry Consultant, Princeton, NJ 08540 USA, and formerly Senior Director of Dental Affairs and Technology Development for a major multinational consumer products company