Influenza vaccination.
R
R
Wilson
D000368:Aged; D006801:Humans; D017589:Immunization Programs; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control*; D017410:Practice Guidelines as Topic; D014611:Vaccination
D007252:Influenza Vaccines