P1‐050: ADJUDICATING MILD COGNITIVE IMPAIRMENT DUE TO ALZHEIMER'S DISEASE AS A NOVEL ENDPOINT EVENT IN THE TOMMORROW STUDY: A DELAY‐OF‐ONSET PHASE 3 CLINICAL TRIAL. (1st July 2006) - Chiang, Carl; Alexander, Robert; Welsh-Bohmer, Kathleen A.; Plassman, Brenda L.; Romero, Heather; Hayden, Kathleen M.; Keefe, Richard SE.; Atkins, Alexandra S.; Harrigan, Patrick; O'Neil, Janet; Culp, Meredith; Walter, Ryan; et al.