1. Department of Neurology; Memory Disorders Unit; Hospital de la Santa Creu i Sant Pau; IIB-Sant Pau; Universitat Autònoma de Barcelona; Barcelona Spain
2. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Madrid Spain
3. Alzheimer Laboratory; Neurology Department; Hospital de la Santa Creu i Sant Pau; Barcelona Spain
4. Department of Neurology and Neuroscience; Weill Medical College of Cornell University; New York New York USA