1. Neurology Department (I.P., A.R.-P., A.A.).
2. Radiology Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain (R.L., A.G.-G., A.M., P.P.).
3. Universitat Internacional de Catalunya, Barcelona, Spain (P.P.).
4. Neurology Department, Badalona Municipal Hospital, Barcelona, Spain (A.A.).