1 Department of Neurosciences and Mental Health (Neurology), Hospital de Santa Maria-Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon, Portugal (D.A.d.S.).
2 Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal (D.A.d.S.).
3 Department of Neurology, University Hospital of Zurich, Switzerland (M.K.).
4 Neuroscience Center of Zurich, University of Zurich, Switzerland (M.K.).