P2‐002: GENETIC CHARACTERIZATION OF BETA AMYLOID PEPTIDES IN ADULTS WITH DOWN SYNDROME WITH A FOCUS ON CHROMOSOMES OTHER THAN 21. (1st July 2014) - Lee, Annie; Lee, Joseph H.; Cheng, Rong; Pang, Deborah; Krinsky‐McHale, Sharon; Jenkins, Edmund; Zigman, Warren; Silverman, Wayne; Tycko, Benjamin; Clark, Lorraine; Schupf, Nicole