1. Department of Neurology; Poitiers University Hospital; Poitiers Cedex France
2. Department of Neurology; S. Giovanni Calibita-Fatebenefratelli Hospital; Rome Italy
3. Clinical Investigation Center INSERM; Poitiers University Hospital; Poitiers Cedex France
4. Department of Neurology; Saint Nazaire Community Hospital; Saint-Nazaire France
5. Department of Vascular Medicine; Poitiers University Hospital; Poitiers Cedex France