1 Institute of Neurosciences and Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain.
2 Department of Neurology, Saint Andrew's State General Hospital of Patras, Patras, Greece.
3 Unit of Neuro-Oncology, Hospital Universitari de Bellvitge-ICO l'Hospitalet, IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain.