1. Extrapyramidal Signs Before and After Diagnosis of Incident Alzheimer Disease in a Prospective Population Study Portet, Florence; Scarmeas, Nikolaos; Cosentino, Stephanie; Helzner, Elizabeth P.; Stern, Yaakov 2009 Articles Alzheimer's diseaseAlzheimer's disease--EtiologyExtrapyramidal disordersOlder people--Health and hygieneDementiaMental healthEpidemiologyGerontology