SELECTION OF GEOGRAPHICALLY STABLE SUBJECTS IN LONGITUDINAL STUDIES OF AGING.
D000368:Aged; D000375:Aging; D001699:Biometry; D005843:Geography; D005853:Geriatrics; D006801:Humans; D008137:Longitudinal Studies; D008404:Massachusetts; D012924:Social Conditions; D013223:Statistics as Topic
AGING; GEOGRAPHY; GERIATRICS; MASSACHUSETTS; SOCIAL CONDITIONS; STATISTICS