P4‐603: INTERIM ANALYSIS OF ONLINE SCREENING AS A RECRUITMENT STRATEGY FOR THE MODELS OF PATIENT ENGAGEMENT IN ALZHEIMER'S DISEASE (MOPEAD) INITIATIVE. (1st July 2019) - Dente, Pasquale; Baker, Elizabeth; Cormack, Francesca K.; Barnett, Jennifer H.; Rodriguez-Gomez, Octavio; Alegret, Montserrat; Valero, Sergi; Rodrigo, Adrián; Campo, Laura; Boada, Mercè