title: Intellect, mental illness, and survival in the aged: a longitudinal investigation.
mesh_terms: D000368:Aged; D000375:Aging; D000704:Analysis of Variance; D003071:Cognition; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D001523:Mental Disorders; D009026:Mortality; D019965:Neurocognitive Disorders; D012559:Schizophrenia; D014706:Verbal Learning