Need for services by the elderly experiencing urban change.
D000368:Aged; D005260:Female; D006262:Health / Q000639:trends*; D006301:Health Services Needs and Demand / Q000639:trends*; D006302:Health Services Research / Q000639:trends*; D006299:Health Services for the Aged / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014481:United States; D014504:Urban Health / Q000639:trends*; D014506:Urban Renewal