title: The oldest old.
authors.forename: E W
authors.initials: EW
authors.lastname: Campion
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D016330:Frail Elderly / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D011156:Population Density; D014481:United States