1 Neurology Department, Centro Hospitalar e Universitário de Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal. Electronic address: diogoreiscarneiro@gmail.com.
2 Neurology Department, Centro Hospitalar e Universitário de Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal.