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.).