Costs of Early Stage Alzheimer’s Disease in the United States: Cross-sectional Analysis of a Prospective Cohort Study (GERAS-US) Manuscript Number: 19-1212R1 Author(s): Jeffrey Scott Andrews, Valerie Bruemmer, Howard Fillit, Yongin Kim, Dorene M. Rentz, Rebecca L. Robinson, Ronald L. Schwartz, Wenyu Ye, Anthony Zagar