Gerontology researchers sharpen focus but face more complex challenges as 21st century looms.
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D000368:Aged; D000375:Aging / Q000502:physiology*; D005260:Female; D005544:Forecasting; D005853:Geriatrics / Q000639:trends*; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000453:epidemiology; D012106:Research / Q000639:trends; D014481:United States / Q000453:epidemiology; D016387:Women's Health