Influenza vaccination cost effective in U.S. adults.
D000328:Adult; D000368:Aged; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000191:economics*; D007251:Influenza, Human / Q000191:economics* / Q000517:prevention & control*; D008875:Middle Aged; D014481:United States; D014611:Vaccination / Q000191:economics*
D007252:Influenza Vaccines