1. Department of Neurology, University Hospital “12 de Octubre”, ES-28041 Madrid, Spain
2. Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ES-28041 Madrid, Spain
3. Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), ES-28041 Madrid, Spain
4. Department of Medicine, Faculty of Medicine, Complutense University, ES-28041 Madrid, Spain
5. Department of Biomedical Sciences, School of Health Sciences International Hellenic University, 57400 Thessaloniki, Greece