[P1–484]: SIMULATION STUDY ON RELATIONSHIP OF EARLY ALZHEIMER DISEASE (AD) COOPERATIVE STUDY–PRECLINICAL ALZHEIMER COGNITIVE COMPOSITE (ADCS‐PACC) WITH LONG‐TERM CHANGES IN COGNITION. (1st July 2017) - Kansal, Anuraag R.; Folse, Henri; Stern, Sean; Keenan, Alexander