1. Faculty of Medicine, University of Coimbra, Coimbra, Portugal
2. Physical and Rehabilitation Medicine Department, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal
3. Physical and Rehabilitation Medicine Department, Centro de Medicina de Reabilitação da Região Centro – Rovisco Pais, Tocha, Portugal
4. Neurology Department, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal