1. Department of Neurology, Hospital Universitario Virgen Macarena, Sevilla, Spain.
2. Neurovascular Research Group, Instituto de Biomedicina de Sevilla-IBiS, Sevilla, Spain.
3. Department of Neurology, Hospital Universitario Virgen del Rocío, Sevilla, Spain.
4. Department of Radiology, Hospital Universitario Virgen del Rocío, Sevilla, Spain.
5. Department of Neurology, Hospital Universitario Torrecárdenas, Almería, Spain.
6. Department of Neurology, Hospital Universitario Puerta del Mar, Cádiz, Spain.
7. Department of Neurology, Hospital Universitario Reina Sofía, Córdoba, Spain.