[An epidemiological survey of 138 cases of the aged over 90 in Liaoyong City].
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Zhao
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000235:genetics; D002386:Cataract / Q000517:prevention & control; D002681:China; D004032:Diet; D005260:Female; D006184:Habits; D006801:Humans; D006973:Hypertension / Q000453:epidemiology / Q000517:prevention & control; D008136:Longevity; D008297:Male