P1‐040: Clinical Dementia Rating‐Sum of Boxes Responder Analysis in Prime: A Randomized Phase 1B Study of the Anti‐Amyloid Beta Monoclonal Antibody Aducanumab (BIIB037). (1st July 2016) - Viglietta, Vissia; O'Gorman, John; Williams, Leslie; Chen, Tianle; Chiao, Ping; Boot, Brendon; Hock, Christoph; Nitsch, Roger M.; Sandrock, Alfred