Major issues in aging focus of national activities.
D000368:Aged; D000573:American Hospital Association; D006301:Health Services Needs and Demand / Q000639:trends; D006299:Health Services for the Aged / Q000458:organization & administration*; D006758:Hospital Volunteers; D006801:Humans; D007349:Insurance, Health, Reimbursement / Q000191:economics; D011158:Population Growth; D014481:United States