[Vaccination against influenza among elderly persons].
D000367:Age Factors; D000368:Aged; D006801:Humans; D009980:Influenza A virus; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000600:supply & distribution; D007251:Influenza, Human / Q000517:prevention & control*; D008875:Middle Aged; D011044:Poland
D007252:Influenza Vaccines
Szczepienia przeciw grypie ludzi w starszym wieku.