If you could halve the mortality rate, would you do it?
Poland
Gregory A
GA
D000368:Aged; D003695:Delivery of Health Care; D006299:Health Services for the Aged; D006801:Humans; D007252:Influenza Vaccines / Q000627:therapeutic use*; D007251:Influenza, Human / Q000401:mortality / Q000517:prevention & control*; D006278:Medicare; D010820:Physicians; D014481:United States
D007252:Influenza Vaccines