1. Department of Neurology Medical University of Graz Graz Austria
2. Division of Gastroenterology and Hepatology Department of Internal Medicine Medical University of Graz Graz Austria
3. Division of Cardiology Department of Internal Medicine Medical University of Graz Graz Austria
4. Clinical Institute of Medical and Chemical Laboratory Diagnostics Medical University of Graz Graz Austria
5. Institute for Medical Informatics, Statistics and Documentation Medical University of Graz Graz Austria
6. Stroke Research Centre UCL Queen Square Institute of Neurology University College London London UK
7. Division of Neuroradiology, Vascular and Interventional Radiology Department of Radiology Medical University of Graz Graz Austria