1. Department of EndocrinologyHeinrich-Heine-University Düsseldorf Germany
2. Clinical Neurocardiology SectionNational Institute of Neurological Disorders and Stroke Bethesda Maryland
3. Genetic Diseases Research BranchNational Human Genome Research Institute Bethesda Maryland
4. Molecular and Clinical Nutrition SectionNational Institute of Diabetes and Digestive and Kidney DiseasesNational Institutes of Health Bethesda Maryland
5. Department of AnatomyHeinrich-Heine-University Düsseldorf Germany