From the Centers for Disease Control. Medicare influenza vaccine demonstration--selected states, 1988-1992.
D000368:Aged; D003362:Cost-Benefit Analysis; D006293:Health Promotion; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000191:economics / Q000517:prevention & control*; D006278:Medicare; D013221:State Health Plans / Q000191:economics; D014481:United States; D014611:Vaccination / Q000706:statistics & numerical data
D007252:Influenza Vaccines