1 Department of Neurology, Hospital de Cascais Dr. José de Almeida, Av. Brigadeiro Victor Novais Gonçalves, 2755-009, Alcabideche, Portugal. Electronic address: miguel.silva.miranda@hospitaldecascais.pt.
2 Department of Neurology, Hospital de Cascais Dr. José de Almeida, Av. Brigadeiro Victor Novais Gonçalves, 2755-009, Alcabideche, Portugal.