f approach could prove to be very useful for screening, stratifying, and enrolling subjects for drug trials. Desikan RS, Fan CC, Wang Y, Schork Al, Cabral HJ, Cupples LA, Thompson WK, Besser L, Kukull WA, Holland D, Chen CH, Brewer 1B, Karow DS, Kauppi K, Witoelar A, Karch CM, Bonham LW, Yokoyama 1S, Rose