1. Department of Vascular Medicine; Academic Medical Center; Amsterdam the Netherlands
2. The Cardiovascular Institute; Mount Sinai Medical Center; New York NY USA
3. School of Medicine and Pharmacology; The University of Western Australia; Perth WA Australia
4. Department of Neurology; Sir Charles Gairdner Hospital; Perth WA Australia
5. Sanofi-Aventis Recherché et Développement; Chilly Mazarin France
6. Department of Epidemiology; Maasticht University Medical Centre; Maastricht the Netherlands
7. The University of Oklahoma Health Sciences Center; Oklahoma city OK USA