title: [Prevention of dementia by social activity].
authors: Smart Ageing International Research Center, Institute of Development, Aging and Cancer, Tohoku University.
authors: Ryuta
authors: R
authors: Kawashima
mesh_terms: D000368:Aged; D015331:Cohort Studies; D003627:Data Interpretation, Statistical; D003704:Dementia / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D012919:Social Behavior