Characterizing race/ethnicity and genetic ancestry for 100,000 subjects in the Genetic Epidemiology Research on Adult Health and Aging (GERA) cohort - Banda, Y; Kvale, M N; Hoffmann, T J; Hesselson, S E; Ranatunga, D; Tang, H; Sabatti, C; Croen, L A; Dispensa, B P; Henderson, M; Iribarren, C; Jorgenson, E; Kushi, L H; Ludwig, D; Olberg, D; Quesenberry, C P, Jr; Rowell, S; Sadler, M; Sakoda, L C; Sciortino, S; Shen, L; Smethurst, D; Somkin, C P; Van Den Eeden, S K; Walter, L; Whitmer, R A; Kwok, P Y; Schaefer, C; Risch, N (Genetics, 2015)