Taking care of the elderly in the year 2000.
D000368:Aged; D003625:Data Collection; D005544:Forecasting; D005102:Health Expenditures / Q000706:statistics & numerical data*; D006299:Health Services for the Aged / Q000191:economics*; D006801:Humans; D009735:Nursing Homes / Q000191:economics; D011157:Population Dynamics