1. From the Stroke Unit, Department of Neurology, Vall d’Hebron Research Institute (B.M., M. Requena, S.B., M. Rubiera, M.M., D.R.-L., N.R.-V., J.J., J.P., C.A.M., M. Ribo), Vall d’Hebron University Hospital, Barcelona, Spain
2. Department of Vascular Neurology, National Institute of Neurology and Neurosurgery, Ciudad de Mexico, Mexico (B.M.).
3. Department de Medicina, Universitat Autònoma de Barcelona, Spain (M. Requena, S.B., M. Rubiera, M.M., D.R.-L., N.R.-V., J.J., J.P., C.A.M., M. Ribo)
4. Department of Neurology, São João Hospital Center, Porto, Portugal (A.A.)
5. Department of Clinical Neurosciences and Mental Health, Faculty of Medicine, University of Porto, Portugal (A.A.)
6. Department of Internal Medicine, Hospital Fernando Fonseca, Amadora, Portugal (N.M.)
7. Department of Neuroradiology (A.T., P.C.), Vall d’Hebron University Hospital, Barcelona, Spain