1. Memory Clinic and Research Center of Fundació ACE, Institut Catalá de Neurociències Aplicades, Barcelona, Spain
2. Neurology Service, Hospital General Universitari Vall d’Hebron, Barcelona, Spain
3. Nephrology Service, Hospital General Universitario Gregorio Marañón, Madrid, Spain
4. Banc de Sang i Teixits, Barcelona, Spain
5. Neurology Service, Hospital General Universitario Gregorio Marañón, Madrid, Spain
6. Alzheimer’s Research Corporation, Mid Atlantic Geriatric Association, Manchester, NJ, USA
7. Department of Internal Medicine, Howard University, Washington, DC, USA
8. Clinical Trials Department, Instituto Grifols S.A., Barcelona, Spain
9. Institut de Neuropatologia, Hospital Universitario Bellvitge, Barcelona, Spain
10. Departments of Neurology and Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, USA