P1‐052: EFFICACY OF MEMANTINE ADDED TO CHOLINESTERASE INHIBITORS ON SIB BEHAVIORAL DOMAINS: POOLED POST HOC ANALYSIS OF TWO RANDOMIZED CONTROLLED TRIALS IN PATIENTS WITH MODERATE TO SEVERE AD. (1st July 2006) - Schmitt, Frederick A.; Grossberg, George T.; Tariot, Pierre N.; Hendrix, Suzanne; Ellison, Noel; Kerolous, Majid