title: [A sociological view of senility].
authors.forename: Wataru
authors.initials: W
authors.lastname: Koyano
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male