[Vaccination against influenza; encourage or observe?].
Salemink
G W
GW
D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000401:mortality / Q000517:prevention & control*; D009426:Netherlands / Q000453:epidemiology
D007252:Influenza Vaccines
Vaccinatie tegen influenza; aanmoedigen of aanzien?