[Investigations on effectiveness of anti-influenza vaccine].
D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D014611:Vaccination; D014612:Vaccines
D007252:Influenza Vaccines; D014612:Vaccines
INFLUENZA/prevention and control; VACCINES AND VACCINATION
Izuchenie effektivnosti protivogrippoznykh vaktsin.