1. Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
2. Stroke Center, Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
3. Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
4. Division of Brain Sciences, Department of Stroke Medicine, Imperial College, London, UK