Treatable brain diseases in the elderly.
D000368:Aged; D000375:Aging / Q000502:physiology; D001927:Brain Diseases / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D006801:Humans; D009316:National Institutes of Health (U.S.); D011581:Psychological Tests; D014057:Tomography, X-Ray Computed; D014481:United States