1. Boehringer Ingelheim Pharmaceuticals, Inc. Ridgefield CTUSA
2. Hauenstein Neuroscience Center Saint Mary's Health Care and Department of Translational Science and Molecular Medicine Michigan State University College of Human Medicine Grand Rapids MI USA
3. Stroke Trials Unit University of Nottingham Nottingham UK
4. Departments of Neurology Epidemiology and Population Health and the Montefiore Headache Center Albert Einstein College of Medicine New York NYUSA
5. Stroke Center and Department of Neurology Miller School of Medicine University of Miami Miami FL USA
6. Department of Neurology and Stroke Center University Hospital Essen Essen Germany