P1‐426: LOWER REGIONAL β‐AMYLOID BURDEN IN JAPANESE THAN AMERICAN APOE ε4‐NEGATIVE ELDERLY. (1st July 2019) - Cui, Chendi; Yu, Zheming; Lopresti, Brian J.; Ihara, Masafumi; Aizenstein, Howard J.; Higashiyama, Aya; Chang, Yuefang; Fukuda, Tetsuya; Minhas, Davneet S.; Lopez, Oscar L.; Klunk, William E.; Mathis, Chester; et al.