1. Department of Neurology; University Hospital “12 de Octubre”; Madrid Spain
2. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas; Madrid Spain
3. Department of Medicine; Faculty of Medicine; Complutense University; Madrid Spain
4. Department of Liaison Psychiatry; Leicestershire Partnership Trust and University of Leicester; Leicester UK
5. Department of Social Sciences; University of Salamanca; Salamanca Spain
6. Department of Studies and Training; Ministry of Health; Social Policy and Equality; Madrid Spain